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Finding the Fourth Proportional to 66,730.01, 100,111.05 and 27,287.10

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Solution

The fourth proportional to 66,730.01, 100,111.05 and 27,287.10 is: 40,937.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,730.01 : 100,111.05 = 27,287.10 : x
  2. Step 2: Convert to fraction form
    66,730.01/100,111.05 = 27,287.10/x
  3. Step 3: Cross multiply
    66,730.01x = 100,111.05 × 27,287.10
  4. Step 4: Simplify right side
    66,730.01x = 2,731,740,232.46
  5. Step 5: Solve for x
    x = 2,731,740,232.46/66,730.01
  6. Step 6: Final answer
    x = 40,937.21

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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.