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Finding the Fourth Proportional to 8,778.34, 13,146.18 and 4,823.56

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Solution

The fourth proportional to 8,778.34, 13,146.18 and 4,823.56 is: 7,223.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,778.34 : 13,146.18 = 4,823.56 : x
  2. Step 2: Convert to fraction form
    8,778.34/13,146.18 = 4,823.56/x
  3. Step 3: Cross multiply
    8,778.34x = 13,146.18 × 4,823.56
  4. Step 4: Simplify right side
    8,778.34x = 63,411,388.00
  5. Step 5: Solve for x
    x = 63,411,388.00/8,778.34
  6. Step 6: Final answer
    x = 7,223.62

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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.