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Finding the Fourth Proportional to 18,586.98, 25,649.46 and 10,088.70

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Solution

The fourth proportional to 18,586.98, 25,649.46 and 10,088.70 is: 13,922.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,586.98 : 25,649.46 = 10,088.70 : x
  2. Step 2: Convert to fraction form
    18,586.98/25,649.46 = 10,088.70/x
  3. Step 3: Cross multiply
    18,586.98x = 25,649.46 × 10,088.70
  4. Step 4: Simplify right side
    18,586.98x = 258,769,707.10
  5. Step 5: Solve for x
    x = 258,769,707.10/18,586.98
  6. Step 6: Final answer
    x = 13,922.10

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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.