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Finding the Fourth Proportional to 70,937.68, 97,894.36 and 39,105.92

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Solution

The fourth proportional to 70,937.68, 97,894.36 and 39,105.92 is: 53,966.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,937.68 : 97,894.36 = 39,105.92 : x
  2. Step 2: Convert to fraction form
    70,937.68/97,894.36 = 39,105.92/x
  3. Step 3: Cross multiply
    70,937.68x = 97,894.36 × 39,105.92
  4. Step 4: Simplify right side
    70,937.68x = 3,828,249,010.61
  5. Step 5: Solve for x
    x = 3,828,249,010.61/70,937.68
  6. Step 6: Final answer
    x = 53,966.37

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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.