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Finding the Fourth Proportional to 15,572.74, 23,362.18 and 5,712.11

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Solution

The fourth proportional to 15,572.74, 23,362.18 and 5,712.11 is: 8,569.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,572.74 : 23,362.18 = 5,712.11 : x
  2. Step 2: Convert to fraction form
    15,572.74/23,362.18 = 5,712.11/x
  3. Step 3: Cross multiply
    15,572.74x = 23,362.18 × 5,712.11
  4. Step 4: Simplify right side
    15,572.74x = 133,447,225.19
  5. Step 5: Solve for x
    x = 133,447,225.19/15,572.74
  6. Step 6: Final answer
    x = 8,569.29

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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.