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Finding the Fourth Proportional to 26,200.70, 39,301.05 and 7,480.70

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Solution

The fourth proportional to 26,200.70, 39,301.05 and 7,480.70 is: 11,221.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,200.70 : 39,301.05 = 7,480.70 : x
  2. Step 2: Convert to fraction form
    26,200.70/39,301.05 = 7,480.70/x
  3. Step 3: Cross multiply
    26,200.70x = 39,301.05 × 7,480.70
  4. Step 4: Simplify right side
    26,200.70x = 293,999,364.74
  5. Step 5: Solve for x
    x = 293,999,364.74/26,200.70
  6. Step 6: Final answer
    x = 11,221.05

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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.