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Finding the Fourth Proportional to 32,442.40, 48,685.20 and 14,903.20

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Solution

The fourth proportional to 32,442.40, 48,685.20 and 14,903.20 is: 22,364.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,442.40 : 48,685.20 = 14,903.20 : x
  2. Step 2: Convert to fraction form
    32,442.40/48,685.20 = 14,903.20/x
  3. Step 3: Cross multiply
    32,442.40x = 48,685.20 × 14,903.20
  4. Step 4: Simplify right side
    32,442.40x = 725,565,272.64
  5. Step 5: Solve for x
    x = 725,565,272.64/32,442.40
  6. Step 6: Final answer
    x = 22,364.72

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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.