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Finding the Fourth Proportional to 43,808.10, 65,712.15 and 25,080.90

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Solution

The fourth proportional to 43,808.10, 65,712.15 and 25,080.90 is: 37,621.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,808.10 : 65,712.15 = 25,080.90 : x
  2. Step 2: Convert to fraction form
    43,808.10/65,712.15 = 25,080.90/x
  3. Step 3: Cross multiply
    43,808.10x = 65,712.15 × 25,080.90
  4. Step 4: Simplify right side
    43,808.10x = 1,648,119,862.94
  5. Step 5: Solve for x
    x = 1,648,119,862.94/43,808.10
  6. Step 6: Final answer
    x = 37,621.35

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1.5x scale

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.