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Finding the Fourth Proportional to 26,656.40, 39,984.60 and 26,267.60

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Solution

The fourth proportional to 26,656.40, 39,984.60 and 26,267.60 is: 39,401.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,656.40 : 39,984.60 = 26,267.60 : x
  2. Step 2: Convert to fraction form
    26,656.40/39,984.60 = 26,267.60/x
  3. Step 3: Cross multiply
    26,656.40x = 39,984.60 × 26,267.60
  4. Step 4: Simplify right side
    26,656.40x = 1,050,299,478.96
  5. Step 5: Solve for x
    x = 1,050,299,478.96/26,656.40
  6. Step 6: Final answer
    x = 39,401.40

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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.