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Finding the Fourth Proportional to 49,987.92, 74,995.92 and 14,928.96

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Solution

The fourth proportional to 49,987.92, 74,995.92 and 14,928.96 is: 22,397.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,987.92 : 74,995.92 = 14,928.96 : x
  2. Step 2: Convert to fraction form
    49,987.92/74,995.92 = 14,928.96/x
  3. Step 3: Cross multiply
    49,987.92x = 74,995.92 × 14,928.96
  4. Step 4: Simplify right side
    49,987.92x = 1,119,611,089.84
  5. Step 5: Solve for x
    x = 1,119,611,089.84/49,987.92
  6. Step 6: Final answer
    x = 22,397.63

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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.