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Finding the Fourth Proportional to 18,186.65, 25,097.35 and 10,230.22

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Solution

The fourth proportional to 18,186.65, 25,097.35 and 10,230.22 is: 14,117.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,186.65 : 25,097.35 = 10,230.22 : x
  2. Step 2: Convert to fraction form
    18,186.65/25,097.35 = 10,230.22/x
  3. Step 3: Cross multiply
    18,186.65x = 25,097.35 × 10,230.22
  4. Step 4: Simplify right side
    18,186.65x = 256,751,411.92
  5. Step 5: Solve for x
    x = 256,751,411.92/18,186.65
  6. Step 6: Final answer
    x = 14,117.58

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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.