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Finding the Fourth Proportional to 66,312.65, 99,470.01 and 36,917.32

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Solution

The fourth proportional to 66,312.65, 99,470.01 and 36,917.32 is: 55,376.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,312.65 : 99,470.01 = 36,917.32 : x
  2. Step 2: Convert to fraction form
    66,312.65/99,470.01 = 36,917.32/x
  3. Step 3: Cross multiply
    66,312.65x = 99,470.01 × 36,917.32
  4. Step 4: Simplify right side
    66,312.65x = 3,672,165,692.22
  5. Step 5: Solve for x
    x = 3,672,165,692.22/66,312.65
  6. Step 6: Final answer
    x = 55,376.55

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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.