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Finding the Fourth Proportional to 71,569.30, 107,353.95 and 65,008.30

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Solution

The fourth proportional to 71,569.30, 107,353.95 and 65,008.30 is: 97,512.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,569.30 : 107,353.95 = 65,008.30 : x
  2. Step 2: Convert to fraction form
    71,569.30/107,353.95 = 65,008.30/x
  3. Step 3: Cross multiply
    71,569.30x = 107,353.95 × 65,008.30
  4. Step 4: Simplify right side
    71,569.30x = 6,978,897,787.79
  5. Step 5: Solve for x
    x = 6,978,897,787.79/71,569.30
  6. Step 6: Final answer
    x = 97,512.45

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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.