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Finding the Fourth Proportional to 43,702.64, 65,532.72 and 15,622.10

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Solution

The fourth proportional to 43,702.64, 65,532.72 and 15,622.10 is: 23,425.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,702.64 : 65,532.72 = 15,622.10 : x
  2. Step 2: Convert to fraction form
    43,702.64/65,532.72 = 15,622.10/x
  3. Step 3: Cross multiply
    43,702.64x = 65,532.72 × 15,622.10
  4. Step 4: Simplify right side
    43,702.64x = 1,023,758,705.11
  5. Step 5: Solve for x
    x = 1,023,758,705.11/43,702.64
  6. Step 6: Final answer
    x = 23,425.56

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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.