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Finding the Fourth Proportional to 48,353.52, 72,477.80 and 18,762.64

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Solution

The fourth proportional to 48,353.52, 72,477.80 and 18,762.64 is: 28,123.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,353.52 : 72,477.80 = 18,762.64 : x
  2. Step 2: Convert to fraction form
    48,353.52/72,477.80 = 18,762.64/x
  3. Step 3: Cross multiply
    48,353.52x = 72,477.80 × 18,762.64
  4. Step 4: Simplify right side
    48,353.52x = 1,359,874,869.39
  5. Step 5: Solve for x
    x = 1,359,874,869.39/48,353.52
  6. Step 6: Final answer
    x = 28,123.60

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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.