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Finding the Fourth Proportional to 17,898.87, 24,703.13 and 12,879.70

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Solution

The fourth proportional to 17,898.87, 24,703.13 and 12,879.70 is: 17,775.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,898.87 : 24,703.13 = 12,879.70 : x
  2. Step 2: Convert to fraction form
    17,898.87/24,703.13 = 12,879.70/x
  3. Step 3: Cross multiply
    17,898.87x = 24,703.13 × 12,879.70
  4. Step 4: Simplify right side
    17,898.87x = 318,168,903.46
  5. Step 5: Solve for x
    x = 318,168,903.46/17,898.87
  6. Step 6: Final answer
    x = 17,775.93

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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.