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Finding the Fourth Proportional to 70,454.88, 97,227.12 and 38,623.20

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Solution

The fourth proportional to 70,454.88, 97,227.12 and 38,623.20 is: 53,299.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,454.88 : 97,227.12 = 38,623.20 : x
  2. Step 2: Convert to fraction form
    70,454.88/97,227.12 = 38,623.20/x
  3. Step 3: Cross multiply
    70,454.88x = 97,227.12 × 38,623.20
  4. Step 4: Simplify right side
    70,454.88x = 3,755,222,501.18
  5. Step 5: Solve for x
    x = 3,755,222,501.18/70,454.88
  6. Step 6: Final answer
    x = 53,299.68

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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.