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Finding the Fourth Proportional to 25,323.95, 34,947.92 and 15,897.71

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Solution

The fourth proportional to 25,323.95, 34,947.92 and 15,897.71 is: 21,939.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,323.95 : 34,947.92 = 15,897.71 : x
  2. Step 2: Convert to fraction form
    25,323.95/34,947.92 = 15,897.71/x
  3. Step 3: Cross multiply
    25,323.95x = 34,947.92 × 15,897.71
  4. Step 4: Simplify right side
    25,323.95x = 555,591,897.26
  5. Step 5: Solve for x
    x = 555,591,897.26/25,323.95
  6. Step 6: Final answer
    x = 21,939.39

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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.