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Finding the Fourth Proportional to 48,422.64, 72,637.64 and 18,827.76

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Solution

The fourth proportional to 48,422.64, 72,637.64 and 18,827.76 is: 28,243.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,422.64 : 72,637.64 = 18,827.76 : x
  2. Step 2: Convert to fraction form
    48,422.64/72,637.64 = 18,827.76/x
  3. Step 3: Cross multiply
    48,422.64x = 72,637.64 × 18,827.76
  4. Step 4: Simplify right side
    48,422.64x = 1,367,604,052.89
  5. Step 5: Solve for x
    x = 1,367,604,052.89/48,422.64
  6. Step 6: Final answer
    x = 28,243.07

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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.