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Finding the Fourth Proportional to 14,712.10, 22,077.86 and 6,921.52

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Solution

The fourth proportional to 14,712.10, 22,077.86 and 6,921.52 is: 10,386.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,712.10 : 22,077.86 = 6,921.52 : x
  2. Step 2: Convert to fraction form
    14,712.10/22,077.86 = 6,921.52/x
  3. Step 3: Cross multiply
    14,712.10x = 22,077.86 × 6,921.52
  4. Step 4: Simplify right side
    14,712.10x = 152,812,349.55
  5. Step 5: Solve for x
    x = 152,812,349.55/14,712.10
  6. Step 6: Final answer
    x = 10,386.85

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.