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Finding the Fourth Proportional to 70,864.91, 97,793.84 and 39,033.74

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Solution

The fourth proportional to 70,864.91, 97,793.84 and 39,033.74 is: 53,866.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,864.91 : 97,793.84 = 39,033.74 : x
  2. Step 2: Convert to fraction form
    70,864.91/97,793.84 = 39,033.74/x
  3. Step 3: Cross multiply
    70,864.91x = 97,793.84 × 39,033.74
  4. Step 4: Simplify right side
    70,864.91x = 3,817,259,324.16
  5. Step 5: Solve for x
    x = 3,817,259,324.16/70,864.91
  6. Step 6: Final answer
    x = 53,866.71

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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.