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Finding the Fourth Proportional to 66,476.79, 99,715.19 and 27,024.66

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Solution

The fourth proportional to 66,476.79, 99,715.19 and 27,024.66 is: 40,536.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,476.79 : 99,715.19 = 27,024.66 : x
  2. Step 2: Convert to fraction form
    66,476.79/99,715.19 = 27,024.66/x
  3. Step 3: Cross multiply
    66,476.79x = 99,715.19 × 27,024.66
  4. Step 4: Simplify right side
    66,476.79x = 2,694,768,971.46
  5. Step 5: Solve for x
    x = 2,694,768,971.46/66,476.79
  6. Step 6: Final answer
    x = 40,536.99

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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.