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Finding the Fourth Proportional to 42,681.72, 58,882.44 and 25,681.44

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Solution

The fourth proportional to 42,681.72, 58,882.44 and 25,681.44 is: 35,429.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,681.72 : 58,882.44 = 25,681.44 : x
  2. Step 2: Convert to fraction form
    42,681.72/58,882.44 = 25,681.44/x
  3. Step 3: Cross multiply
    42,681.72x = 58,882.44 × 25,681.44
  4. Step 4: Simplify right side
    42,681.72x = 1,512,185,849.91
  5. Step 5: Solve for x
    x = 1,512,185,849.91/42,681.72
  6. Step 6: Final answer
    x = 35,429.36

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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.