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Finding the Fourth Proportional to 70,678.66, 97,535.30 and 38,847.55

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Solution

The fourth proportional to 70,678.66, 97,535.30 and 38,847.55 is: 53,608.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,678.66 : 97,535.30 = 38,847.55 : x
  2. Step 2: Convert to fraction form
    70,678.66/97,535.30 = 38,847.55/x
  3. Step 3: Cross multiply
    70,678.66x = 97,535.30 × 38,847.55
  4. Step 4: Simplify right side
    70,678.66x = 3,789,007,443.52
  5. Step 5: Solve for x
    x = 3,789,007,443.52/70,678.66
  6. Step 6: Final answer
    x = 53,608.93

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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.