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Finding the Fourth Proportional to 70,536.87, 97,342.86 and 38,707.83

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Solution

The fourth proportional to 70,536.87, 97,342.86 and 38,707.83 is: 53,417.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,536.87 : 97,342.86 = 38,707.83 : x
  2. Step 2: Convert to fraction form
    70,536.87/97,342.86 = 38,707.83/x
  3. Step 3: Cross multiply
    70,536.87x = 97,342.86 × 38,707.83
  4. Step 4: Simplify right side
    70,536.87x = 3,767,930,876.59
  5. Step 5: Solve for x
    x = 3,767,930,876.59/70,536.87
  6. Step 6: Final answer
    x = 53,417.89

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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.