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Finding the Fourth Proportional to 50,572.40, 75,869.16 and 19,407.44

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Solution

The fourth proportional to 50,572.40, 75,869.16 and 19,407.44 is: 29,115.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,572.40 : 75,869.16 = 19,407.44 : x
  2. Step 2: Convert to fraction form
    50,572.40/75,869.16 = 19,407.44/x
  3. Step 3: Cross multiply
    50,572.40x = 75,869.16 × 19,407.44
  4. Step 4: Simplify right side
    50,572.40x = 1,472,426,170.55
  5. Step 5: Solve for x
    x = 1,472,426,170.55/50,572.40
  6. Step 6: Final answer
    x = 29,115.21

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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.