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Finding the Fourth Proportional to 48,337.64, 72,532.88 and 18,756.64

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Solution

The fourth proportional to 48,337.64, 72,532.88 and 18,756.64 is: 28,145.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,337.64 : 72,532.88 = 18,756.64 : x
  2. Step 2: Convert to fraction form
    48,337.64/72,532.88 = 18,756.64/x
  3. Step 3: Cross multiply
    48,337.64x = 72,532.88 × 18,756.64
  4. Step 4: Simplify right side
    48,337.64x = 1,360,473,118.32
  5. Step 5: Solve for x
    x = 1,360,473,118.32/48,337.64
  6. Step 6: Final answer
    x = 28,145.21

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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.