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Finding the Fourth Proportional to 26,687.61, 36,830.81 and 14,750.70

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Solution

The fourth proportional to 26,687.61, 36,830.81 and 14,750.70 is: 20,357.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,687.61 : 36,830.81 = 14,750.70 : x
  2. Step 2: Convert to fraction form
    26,687.61/36,830.81 = 14,750.70/x
  3. Step 3: Cross multiply
    26,687.61x = 36,830.81 × 14,750.70
  4. Step 4: Simplify right side
    26,687.61x = 543,280,229.07
  5. Step 5: Solve for x
    x = 543,280,229.07/26,687.61
  6. Step 6: Final answer
    x = 20,357.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.