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Finding the Fourth Proportional to 26,402.60, 39,603.90 and 16,415.30

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Solution

The fourth proportional to 26,402.60, 39,603.90 and 16,415.30 is: 24,622.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,402.60 : 39,603.90 = 16,415.30 : x
  2. Step 2: Convert to fraction form
    26,402.60/39,603.90 = 16,415.30/x
  3. Step 3: Cross multiply
    26,402.60x = 39,603.90 × 16,415.30
  4. Step 4: Simplify right side
    26,402.60x = 650,109,899.67
  5. Step 5: Solve for x
    x = 650,109,899.67/26,402.60
  6. Step 6: Final answer
    x = 24,622.95

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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.