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Finding the Fourth Proportional to 44,405.10, 66,644.10 and 42,947.10

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Solution

The fourth proportional to 44,405.10, 66,644.10 and 42,947.10 is: 64,455.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,405.10 : 66,644.10 = 42,947.10 : x
  2. Step 2: Convert to fraction form
    44,405.10/66,644.10 = 42,947.10/x
  3. Step 3: Cross multiply
    44,405.10x = 66,644.10 × 42,947.10
  4. Step 4: Simplify right side
    44,405.10x = 2,862,170,827.11
  5. Step 5: Solve for x
    x = 2,862,170,827.11/44,405.10
  6. Step 6: Final answer
    x = 64,455.90

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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.