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Finding the Fourth Proportional to 28,966.60, 43,385.10 and 23,782.60

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Solution

The fourth proportional to 28,966.60, 43,385.10 and 23,782.60 is: 35,620.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,966.60 : 43,385.10 = 23,782.60 : x
  2. Step 2: Convert to fraction form
    28,966.60/43,385.10 = 23,782.60/x
  3. Step 3: Cross multiply
    28,966.60x = 43,385.10 × 23,782.60
  4. Step 4: Simplify right side
    28,966.60x = 1,031,810,479.26
  5. Step 5: Solve for x
    x = 1,031,810,479.26/28,966.60
  6. Step 6: Final answer
    x = 35,620.70

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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.