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Finding the Fourth Proportional to 18,758.80, 25,883.40 and 10,373.68

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Solution

The fourth proportional to 18,758.80, 25,883.40 and 10,373.68 is: 14,313.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,758.80 : 25,883.40 = 10,373.68 : x
  2. Step 2: Convert to fraction form
    18,758.80/25,883.40 = 10,373.68/x
  3. Step 3: Cross multiply
    18,758.80x = 25,883.40 × 10,373.68
  4. Step 4: Simplify right side
    18,758.80x = 268,506,108.91
  5. Step 5: Solve for x
    x = 268,506,108.91/18,758.80
  6. Step 6: Final answer
    x = 14,313.61

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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.