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Finding the Fourth Proportional to 40,458.60, 60,687.90 and 26,461.80

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Solution

The fourth proportional to 40,458.60, 60,687.90 and 26,461.80 is: 39,692.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,458.60 : 60,687.90 = 26,461.80 : x
  2. Step 2: Convert to fraction form
    40,458.60/60,687.90 = 26,461.80/x
  3. Step 3: Cross multiply
    40,458.60x = 60,687.90 × 26,461.80
  4. Step 4: Simplify right side
    40,458.60x = 1,605,911,072.22
  5. Step 5: Solve for x
    x = 1,605,911,072.22/40,458.60
  6. Step 6: Final answer
    x = 39,692.70

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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.