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Finding the Fourth Proportional to 15,491.17, 23,242.02 and 5,631.24

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Solution

The fourth proportional to 15,491.17, 23,242.02 and 5,631.24 is: 8,448.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,491.17 : 23,242.02 = 5,631.24 : x
  2. Step 2: Convert to fraction form
    15,491.17/23,242.02 = 5,631.24/x
  3. Step 3: Cross multiply
    15,491.17x = 23,242.02 × 5,631.24
  4. Step 4: Simplify right side
    15,491.17x = 130,881,392.70
  5. Step 5: Solve for x
    x = 130,881,392.70/15,491.17
  6. Step 6: Final answer
    x = 8,448.77

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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.