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Finding the Fourth Proportional to 44,642.88, 66,967.56 and 13,480.56

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Solution

The fourth proportional to 44,642.88, 66,967.56 and 13,480.56 is: 20,221.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,642.88 : 66,967.56 = 13,480.56 : x
  2. Step 2: Convert to fraction form
    44,642.88/66,967.56 = 13,480.56/x
  3. Step 3: Cross multiply
    44,642.88x = 66,967.56 × 13,480.56
  4. Step 4: Simplify right side
    44,642.88x = 902,760,210.63
  5. Step 5: Solve for x
    x = 902,760,210.63/44,642.88
  6. Step 6: Final answer
    x = 20,221.82

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1.5x scale

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.