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Finding the Fourth Proportional to 48,435.30, 72,652.86 and 13,374.86

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Solution

The fourth proportional to 48,435.30, 72,652.86 and 13,374.86 is: 20,062.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,435.30 : 72,652.86 = 13,374.86 : x
  2. Step 2: Convert to fraction form
    48,435.30/72,652.86 = 13,374.86/x
  3. Step 3: Cross multiply
    48,435.30x = 72,652.86 × 13,374.86
  4. Step 4: Simplify right side
    48,435.30x = 971,721,831.10
  5. Step 5: Solve for x
    x = 971,721,831.10/48,435.30
  6. Step 6: Final answer
    x = 20,062.27

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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.