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Finding the Fourth Proportional to 26,471.74, 39,712.47 and 8,703.40

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Solution

The fourth proportional to 26,471.74, 39,712.47 and 8,703.40 is: 13,056.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,471.74 : 39,712.47 = 8,703.40 : x
  2. Step 2: Convert to fraction form
    26,471.74/39,712.47 = 8,703.40/x
  3. Step 3: Cross multiply
    26,471.74x = 39,712.47 × 8,703.40
  4. Step 4: Simplify right side
    26,471.74x = 345,633,511.40
  5. Step 5: Solve for x
    x = 345,633,511.40/26,471.74
  6. Step 6: Final answer
    x = 13,056.70

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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.