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Finding the Fourth Proportional to 63,164.61, 87,198.73 and 39,298.97

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Solution

The fourth proportional to 63,164.61, 87,198.73 and 39,298.97 is: 54,252.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,164.61 : 87,198.73 = 39,298.97 : x
  2. Step 2: Convert to fraction form
    63,164.61/87,198.73 = 39,298.97/x
  3. Step 3: Cross multiply
    63,164.61x = 87,198.73 × 39,298.97
  4. Step 4: Simplify right side
    63,164.61x = 3,426,820,394.06
  5. Step 5: Solve for x
    x = 3,426,820,394.06/63,164.61
  6. Step 6: Final answer
    x = 54,252.22

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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.