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Finding the Fourth Proportional to 44,580.56, 66,869.22 and 13,415

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Solution

The fourth proportional to 44,580.56, 66,869.22 and 13,415 is: 20,122.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,580.56 : 66,869.22 = 13,415 : x
  2. Step 2: Convert to fraction form
    44,580.56/66,869.22 = 13,415/x
  3. Step 3: Cross multiply
    44,580.56x = 66,869.22 × 13,415
  4. Step 4: Simplify right side
    44,580.56x = 897,050,586.30
  5. Step 5: Solve for x
    x = 897,050,586.30/44,580.56
  6. Step 6: Final answer
    x = 20,122.01

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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.