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Finding the Fourth Proportional to 25,240.89, 37,866.90 and 7,712.08

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Solution

The fourth proportional to 25,240.89, 37,866.90 and 7,712.08 is: 11,569.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,240.89 : 37,866.90 = 7,712.08 : x
  2. Step 2: Convert to fraction form
    25,240.89/37,866.90 = 7,712.08/x
  3. Step 3: Cross multiply
    25,240.89x = 37,866.90 × 7,712.08
  4. Step 4: Simplify right side
    25,240.89x = 292,032,562.15
  5. Step 5: Solve for x
    x = 292,032,562.15/25,240.89
  6. Step 6: Final answer
    x = 11,569.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.