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Finding the Fourth Proportional to 26,885.80, 40,425.90 and 26,302.60

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Solution

The fourth proportional to 26,885.80, 40,425.90 and 26,302.60 is: 39,548.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,885.80 : 40,425.90 = 26,302.60 : x
  2. Step 2: Convert to fraction form
    26,885.80/40,425.90 = 26,302.60/x
  3. Step 3: Cross multiply
    26,885.80x = 40,425.90 × 26,302.60
  4. Step 4: Simplify right side
    26,885.80x = 1,063,306,277.34
  5. Step 5: Solve for x
    x = 1,063,306,277.34/26,885.80
  6. Step 6: Final answer
    x = 39,548.99

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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.