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Finding the Fourth Proportional to 19,251.52, 26,569.52 and 10,869.76

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Solution

The fourth proportional to 19,251.52, 26,569.52 and 10,869.76 is: 15,001.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,251.52 : 26,569.52 = 10,869.76 : x
  2. Step 2: Convert to fraction form
    19,251.52/26,569.52 = 10,869.76/x
  3. Step 3: Cross multiply
    19,251.52x = 26,569.52 × 10,869.76
  4. Step 4: Simplify right side
    19,251.52x = 288,804,305.72
  5. Step 5: Solve for x
    x = 288,804,305.72/19,251.52
  6. Step 6: Final answer
    x = 15,001.64

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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.