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Finding the Fourth Proportional to 44,113.56, 66,301.56 and 20,756.40

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Solution

The fourth proportional to 44,113.56, 66,301.56 and 20,756.40 is: 31,196.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,113.56 : 66,301.56 = 20,756.40 : x
  2. Step 2: Convert to fraction form
    44,113.56/66,301.56 = 20,756.40/x
  3. Step 3: Cross multiply
    44,113.56x = 66,301.56 × 20,756.40
  4. Step 4: Simplify right side
    44,113.56x = 1,376,181,699.98
  5. Step 5: Solve for x
    x = 1,376,181,699.98/44,113.56
  6. Step 6: Final answer
    x = 31,196.34

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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.