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Finding the Fourth Proportional to 48,681.92, 72,880.50 and 44,012.68

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Solution

The fourth proportional to 48,681.92, 72,880.50 and 44,012.68 is: 65,890.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,681.92 : 72,880.50 = 44,012.68 : x
  2. Step 2: Convert to fraction form
    48,681.92/72,880.50 = 44,012.68/x
  3. Step 3: Cross multiply
    48,681.92x = 72,880.50 × 44,012.68
  4. Step 4: Simplify right side
    48,681.92x = 3,207,666,124.74
  5. Step 5: Solve for x
    x = 3,207,666,124.74/48,681.92
  6. Step 6: Final answer
    x = 65,890.30

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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.