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Finding the Fourth Proportional to 25,009.92, 34,513.92 and 14,402.88

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Solution

The fourth proportional to 25,009.92, 34,513.92 and 14,402.88 is: 19,876.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,009.92 : 34,513.92 = 14,402.88 : x
  2. Step 2: Convert to fraction form
    25,009.92/34,513.92 = 14,402.88/x
  3. Step 3: Cross multiply
    25,009.92x = 34,513.92 × 14,402.88
  4. Step 4: Simplify right side
    25,009.92x = 497,099,848.09
  5. Step 5: Solve for x
    x = 497,099,848.09/25,009.92
  6. Step 6: Final answer
    x = 19,876.11

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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.