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Finding the Fourth Proportional to 44,876.76, 67,312.70 and 13,712.01

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Solution

The fourth proportional to 44,876.76, 67,312.70 and 13,712.01 is: 20,567.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,876.76 : 67,312.70 = 13,712.01 : x
  2. Step 2: Convert to fraction form
    44,876.76/67,312.70 = 13,712.01/x
  3. Step 3: Cross multiply
    44,876.76x = 67,312.70 × 13,712.01
  4. Step 4: Simplify right side
    44,876.76x = 922,992,415.53
  5. Step 5: Solve for x
    x = 922,992,415.53/44,876.76
  6. Step 6: Final answer
    x = 20,567.27

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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.