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Finding the Fourth Proportional to 70,698.08, 97,560.86 and 38,866.74

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Solution

The fourth proportional to 70,698.08, 97,560.86 and 38,866.74 is: 53,634.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,698.08 : 97,560.86 = 38,866.74 : x
  2. Step 2: Convert to fraction form
    70,698.08/97,560.86 = 38,866.74/x
  3. Step 3: Cross multiply
    70,698.08x = 97,560.86 × 38,866.74
  4. Step 4: Simplify right side
    70,698.08x = 3,791,872,385.46
  5. Step 5: Solve for x
    x = 3,791,872,385.46/70,698.08
  6. Step 6: Final answer
    x = 53,634.73

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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.