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Finding the Fourth Proportional to 25,326.92, 34,948.14 and 15,255.20

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Solution

The fourth proportional to 25,326.92, 34,948.14 and 15,255.20 is: 21,050.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,326.92 : 34,948.14 = 15,255.20 : x
  2. Step 2: Convert to fraction form
    25,326.92/34,948.14 = 15,255.20/x
  3. Step 3: Cross multiply
    25,326.92x = 34,948.14 × 15,255.20
  4. Step 4: Simplify right side
    25,326.92x = 533,140,865.33
  5. Step 5: Solve for x
    x = 533,140,865.33/25,326.92
  6. Step 6: Final answer
    x = 21,050.36

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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.