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Finding the Fourth Proportional to 70,456.79, 97,230.02 and 38,191.29

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Solution

The fourth proportional to 70,456.79, 97,230.02 and 38,191.29 is: 52,703.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,456.79 : 97,230.02 = 38,191.29 : x
  2. Step 2: Convert to fraction form
    70,456.79/97,230.02 = 38,191.29/x
  3. Step 3: Cross multiply
    70,456.79x = 97,230.02 × 38,191.29
  4. Step 4: Simplify right side
    70,456.79x = 3,713,339,890.53
  5. Step 5: Solve for x
    x = 3,713,339,890.53/70,456.79
  6. Step 6: Final answer
    x = 52,703.79

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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.