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Finding the Fourth Proportional to 25,607.60, 38,435.70 and 15,766.10

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Solution

The fourth proportional to 25,607.60, 38,435.70 and 15,766.10 is: 23,664.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,607.60 : 38,435.70 = 15,766.10 : x
  2. Step 2: Convert to fraction form
    25,607.60/38,435.70 = 15,766.10/x
  3. Step 3: Cross multiply
    25,607.60x = 38,435.70 × 15,766.10
  4. Step 4: Simplify right side
    25,607.60x = 605,981,089.77
  5. Step 5: Solve for x
    x = 605,981,089.77/25,607.60
  6. Step 6: Final answer
    x = 23,664.11

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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.