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Finding the Fourth Proportional to 44,061.76, 66,102.40 and 12,894.40

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Solution

The fourth proportional to 44,061.76, 66,102.40 and 12,894.40 is: 19,344.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,061.76 : 66,102.40 = 12,894.40 : x
  2. Step 2: Convert to fraction form
    44,061.76/66,102.40 = 12,894.40/x
  3. Step 3: Cross multiply
    44,061.76x = 66,102.40 × 12,894.40
  4. Step 4: Simplify right side
    44,061.76x = 852,350,786.56
  5. Step 5: Solve for x
    x = 852,350,786.56/44,061.76
  6. Step 6: Final answer
    x = 19,344.46

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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.