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Finding the Fourth Proportional to 70,455.81, 97,227.90 and 38,624.93

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Solution

The fourth proportional to 70,455.81, 97,227.90 and 38,624.93 is: 53,301.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,455.81 : 97,227.90 = 38,624.93 : x
  2. Step 2: Convert to fraction form
    70,455.81/97,227.90 = 38,624.93/x
  3. Step 3: Cross multiply
    70,455.81x = 97,227.90 × 38,624.93
  4. Step 4: Simplify right side
    70,455.81x = 3,755,420,345.41
  5. Step 5: Solve for x
    x = 3,755,420,345.41/70,455.81
  6. Step 6: Final answer
    x = 53,301.78

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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.