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Finding the Fourth Proportional to 83,486.79, 125,228.84 and 26,559.90

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Solution

The fourth proportional to 83,486.79, 125,228.84 and 26,559.90 is: 39,839.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,486.79 : 125,228.84 = 26,559.90 : x
  2. Step 2: Convert to fraction form
    83,486.79/125,228.84 = 26,559.90/x
  3. Step 3: Cross multiply
    83,486.79x = 125,228.84 × 26,559.90
  4. Step 4: Simplify right side
    83,486.79x = 3,326,065,334.72
  5. Step 5: Solve for x
    x = 3,326,065,334.72/83,486.79
  6. Step 6: Final answer
    x = 39,839.42

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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.