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Finding the Fourth Proportional to 70,159.97, 96,816.20 and 38,328.86

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Solution

The fourth proportional to 70,159.97, 96,816.20 and 38,328.86 is: 52,891.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,159.97 : 96,816.20 = 38,328.86 : x
  2. Step 2: Convert to fraction form
    70,159.97/96,816.20 = 38,328.86/x
  3. Step 3: Cross multiply
    70,159.97x = 96,816.20 × 38,328.86
  4. Step 4: Simplify right side
    70,159.97x = 3,710,853,899.81
  5. Step 5: Solve for x
    x = 3,710,853,899.81/70,159.97
  6. Step 6: Final answer
    x = 52,891.33

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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.