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Finding the Fourth Proportional to 44,332.65, 66,578.22 and 42,548.90

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Solution

The fourth proportional to 44,332.65, 66,578.22 and 42,548.90 is: 63,899.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,332.65 : 66,578.22 = 42,548.90 : x
  2. Step 2: Convert to fraction form
    44,332.65/66,578.22 = 42,548.90/x
  3. Step 3: Cross multiply
    44,332.65x = 66,578.22 × 42,548.90
  4. Step 4: Simplify right side
    44,332.65x = 2,832,829,692.07
  5. Step 5: Solve for x
    x = 2,832,829,692.07/44,332.65
  6. Step 6: Final answer
    x = 63,899.40

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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.