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Finding the Fourth Proportional to 66,462.18, 99,712.10 and 27,047.58

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Solution

The fourth proportional to 66,462.18, 99,712.10 and 27,047.58 is: 40,579.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,462.18 : 99,712.10 = 27,047.58 : x
  2. Step 2: Convert to fraction form
    66,462.18/99,712.10 = 27,047.58/x
  3. Step 3: Cross multiply
    66,462.18x = 99,712.10 × 27,047.58
  4. Step 4: Simplify right side
    66,462.18x = 2,696,971,001.72
  5. Step 5: Solve for x
    x = 2,696,971,001.72/66,462.18
  6. Step 6: Final answer
    x = 40,579.03

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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.