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Finding the Fourth Proportional to 66,603.30, 99,818.28 and 27,114.18

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Solution

The fourth proportional to 66,603.30, 99,818.28 and 27,114.18 is: 40,635.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,603.30 : 99,818.28 = 27,114.18 : x
  2. Step 2: Convert to fraction form
    66,603.30/99,818.28 = 27,114.18/x
  3. Step 3: Cross multiply
    66,603.30x = 99,818.28 × 27,114.18
  4. Step 4: Simplify right side
    66,603.30x = 2,706,490,811.21
  5. Step 5: Solve for x
    x = 2,706,490,811.21/66,603.30
  6. Step 6: Final answer
    x = 40,635.99

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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.