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Finding the Fourth Proportional to 70,073.88, 96,698.94 and 39,854.94

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Solution

The fourth proportional to 70,073.88, 96,698.94 and 39,854.94 is: 54,998.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,073.88 : 96,698.94 = 39,854.94 : x
  2. Step 2: Convert to fraction form
    70,073.88/96,698.94 = 39,854.94/x
  3. Step 3: Cross multiply
    70,073.88x = 96,698.94 × 39,854.94
  4. Step 4: Simplify right side
    70,073.88x = 3,853,930,451.76
  5. Step 5: Solve for x
    x = 3,853,930,451.76/70,073.88
  6. Step 6: Final answer
    x = 54,998.10

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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.