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Finding the Fourth Proportional to 5,272.29, 7,948.13 and 4,915.53

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Solution

The fourth proportional to 5,272.29, 7,948.13 and 4,915.53 is: 7,410.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.29 : 7,948.13 = 4,915.53 : x
  2. Step 2: Convert to fraction form
    5,272.29/7,948.13 = 4,915.53/x
  3. Step 3: Cross multiply
    5,272.29x = 7,948.13 × 4,915.53
  4. Step 4: Simplify right side
    5,272.29x = 39,069,246.88
  5. Step 5: Solve for x
    x = 39,069,246.88/5,272.29
  6. Step 6: Final answer
    x = 7,410.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.