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Finding the Fourth Proportional to 70,531.85, 97,334.07 and 38,700.99

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Solution

The fourth proportional to 70,531.85, 97,334.07 and 38,700.99 is: 53,407.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,531.85 : 97,334.07 = 38,700.99 : x
  2. Step 2: Convert to fraction form
    70,531.85/97,334.07 = 38,700.99/x
  3. Step 3: Cross multiply
    70,531.85x = 97,334.07 × 38,700.99
  4. Step 4: Simplify right side
    70,531.85x = 3,766,924,869.73
  5. Step 5: Solve for x
    x = 3,766,924,869.73/70,531.85
  6. Step 6: Final answer
    x = 53,407.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.