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Finding the Fourth Proportional to 11,068.70, 16,603.05 and 7,310.30

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Solution

The fourth proportional to 11,068.70, 16,603.05 and 7,310.30 is: 10,965.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,068.70 : 16,603.05 = 7,310.30 : x
  2. Step 2: Convert to fraction form
    11,068.70/16,603.05 = 7,310.30/x
  3. Step 3: Cross multiply
    11,068.70x = 16,603.05 × 7,310.30
  4. Step 4: Simplify right side
    11,068.70x = 121,373,276.42
  5. Step 5: Solve for x
    x = 121,373,276.42/11,068.70
  6. Step 6: Final answer
    x = 10,965.45

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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.