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Finding the Fourth Proportional to 19,495.71, 29,248.43 and 5,644.71

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Solution

The fourth proportional to 19,495.71, 29,248.43 and 5,644.71 is: 8,468.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,495.71 : 29,248.43 = 5,644.71 : x
  2. Step 2: Convert to fraction form
    19,495.71/29,248.43 = 5,644.71/x
  3. Step 3: Cross multiply
    19,495.71x = 29,248.43 × 5,644.71
  4. Step 4: Simplify right side
    19,495.71x = 165,098,877.08
  5. Step 5: Solve for x
    x = 165,098,877.08/19,495.71
  6. Step 6: Final answer
    x = 8,468.47

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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.