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Finding the Fourth Proportional to 26,459.80, 39,689.70 and 16,480.60

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Solution

The fourth proportional to 26,459.80, 39,689.70 and 16,480.60 is: 24,720.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,459.80 : 39,689.70 = 16,480.60 : x
  2. Step 2: Convert to fraction form
    26,459.80/39,689.70 = 16,480.60/x
  3. Step 3: Cross multiply
    26,459.80x = 39,689.70 × 16,480.60
  4. Step 4: Simplify right side
    26,459.80x = 654,110,069.82
  5. Step 5: Solve for x
    x = 654,110,069.82/26,459.80
  6. Step 6: Final answer
    x = 24,720.90

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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.