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Finding the Fourth Proportional to 66,470.16, 99,724.08 and 27,055.56

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Solution

The fourth proportional to 66,470.16, 99,724.08 and 27,055.56 is: 40,591.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,470.16 : 99,724.08 = 27,055.56 : x
  2. Step 2: Convert to fraction form
    66,470.16/99,724.08 = 27,055.56/x
  3. Step 3: Cross multiply
    66,470.16x = 99,724.08 × 27,055.56
  4. Step 4: Simplify right side
    66,470.16x = 2,698,090,829.88
  5. Step 5: Solve for x
    x = 2,698,090,829.88/66,470.16
  6. Step 6: Final answer
    x = 40,591.01

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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.