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Finding the Fourth Proportional to 25,515.88, 38,268.06 and 9,099.88

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Solution

The fourth proportional to 25,515.88, 38,268.06 and 9,099.88 is: 13,647.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,515.88 : 38,268.06 = 9,099.88 : x
  2. Step 2: Convert to fraction form
    25,515.88/38,268.06 = 9,099.88/x
  3. Step 3: Cross multiply
    25,515.88x = 38,268.06 × 9,099.88
  4. Step 4: Simplify right side
    25,515.88x = 348,234,753.83
  5. Step 5: Solve for x
    x = 348,234,753.83/25,515.88
  6. Step 6: Final answer
    x = 13,647.77

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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.