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Finding the Fourth Proportional to 44,368.80, 66,562.80 and 13,207.20

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Solution

The fourth proportional to 44,368.80, 66,562.80 and 13,207.20 is: 19,813.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,368.80 : 66,562.80 = 13,207.20 : x
  2. Step 2: Convert to fraction form
    44,368.80/66,562.80 = 13,207.20/x
  3. Step 3: Cross multiply
    44,368.80x = 66,562.80 × 13,207.20
  4. Step 4: Simplify right side
    44,368.80x = 879,108,212.16
  5. Step 5: Solve for x
    x = 879,108,212.16/44,368.80
  6. Step 6: Final answer
    x = 19,813.66

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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.