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Finding the Fourth Proportional to 43,883.80, 65,825.70 and 40,946.20

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Solution

The fourth proportional to 43,883.80, 65,825.70 and 40,946.20 is: 61,419.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,883.80 : 65,825.70 = 40,946.20 : x
  2. Step 2: Convert to fraction form
    43,883.80/65,825.70 = 40,946.20/x
  3. Step 3: Cross multiply
    43,883.80x = 65,825.70 × 40,946.20
  4. Step 4: Simplify right side
    43,883.80x = 2,695,312,277.34
  5. Step 5: Solve for x
    x = 2,695,312,277.34/43,883.80
  6. Step 6: Final answer
    x = 61,419.30

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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.