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Finding the Fourth Proportional to 70,042.06, 96,656.42 and 38,212.08

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Solution

The fourth proportional to 70,042.06, 96,656.42 and 38,212.08 is: 52,731.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,042.06 : 96,656.42 = 38,212.08 : x
  2. Step 2: Convert to fraction form
    70,042.06/96,656.42 = 38,212.08/x
  3. Step 3: Cross multiply
    70,042.06x = 96,656.42 × 38,212.08
  4. Step 4: Simplify right side
    70,042.06x = 3,693,442,853.55
  5. Step 5: Solve for x
    x = 3,693,442,853.55/70,042.06
  6. Step 6: Final answer
    x = 52,731.79

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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.