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Finding the Fourth Proportional to 25,115.92, 34,661.06 and 15,046

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Solution

The fourth proportional to 25,115.92, 34,661.06 and 15,046 is: 20,764.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,115.92 : 34,661.06 = 15,046 : x
  2. Step 2: Convert to fraction form
    25,115.92/34,661.06 = 15,046/x
  3. Step 3: Cross multiply
    25,115.92x = 34,661.06 × 15,046
  4. Step 4: Simplify right side
    25,115.92x = 521,510,308.76
  5. Step 5: Solve for x
    x = 521,510,308.76/25,115.92
  6. Step 6: Final answer
    x = 20,764.13

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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.