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Finding the Fourth Proportional to 8,798,712.30, 13,198,068.45 and 5,019,576.30

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Solution

The fourth proportional to 8,798,712.30, 13,198,068.45 and 5,019,576.30 is: 7,529,364.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,798,712.30 : 13,198,068.45 = 5,019,576.30 : x
  2. Step 2: Convert to fraction form
    8,798,712.30/13,198,068.45 = 5,019,576.30/x
  3. Step 3: Cross multiply
    8,798,712.30x = 13,198,068.45 × 5,019,576.30
  4. Step 4: Simplify right side
    8,798,712.30x = 66,248,711,597,397.73
  5. Step 5: Solve for x
    x = 66,248,711,597,397.73/8,798,712.30
  6. Step 6: Final answer
    x = 7,529,364.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.