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Finding the Fourth Proportional to 25,642.60, 38,463.90 and 10,847.68

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Solution

The fourth proportional to 25,642.60, 38,463.90 and 10,847.68 is: 16,271.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,642.60 : 38,463.90 = 10,847.68 : x
  2. Step 2: Convert to fraction form
    25,642.60/38,463.90 = 10,847.68/x
  3. Step 3: Cross multiply
    25,642.60x = 38,463.90 × 10,847.68
  4. Step 4: Simplify right side
    25,642.60x = 417,244,078.75
  5. Step 5: Solve for x
    x = 417,244,078.75/25,642.60
  6. Step 6: Final answer
    x = 16,271.52

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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.