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Finding the Fourth Proportional to 70,459.87, 97,234.59 and 38,628.08

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Solution

The fourth proportional to 70,459.87, 97,234.59 and 38,628.08 is: 53,306.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,459.87 : 97,234.59 = 38,628.08 : x
  2. Step 2: Convert to fraction form
    70,459.87/97,234.59 = 38,628.08/x
  3. Step 3: Cross multiply
    70,459.87x = 97,234.59 × 38,628.08
  4. Step 4: Simplify right side
    70,459.87x = 3,755,985,909.23
  5. Step 5: Solve for x
    x = 3,755,985,909.23/70,459.87
  6. Step 6: Final answer
    x = 53,306.74

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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.