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Finding the Fourth Proportional to 14,149.76, 19,527.18 and 7,862

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Solution

The fourth proportional to 14,149.76, 19,527.18 and 7,862 is: 10,849.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,149.76 : 19,527.18 = 7,862 : x
  2. Step 2: Convert to fraction form
    14,149.76/19,527.18 = 7,862/x
  3. Step 3: Cross multiply
    14,149.76x = 19,527.18 × 7,862
  4. Step 4: Simplify right side
    14,149.76x = 153,522,689.16
  5. Step 5: Solve for x
    x = 153,522,689.16/14,149.76
  6. Step 6: Final answer
    x = 10,849.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.