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Finding the Fourth Proportional to 18,425.90, 27,641.74 and 7,332.68

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Solution

The fourth proportional to 18,425.90, 27,641.74 and 7,332.68 is: 11,000.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,425.90 : 27,641.74 = 7,332.68 : x
  2. Step 2: Convert to fraction form
    18,425.90/27,641.74 = 7,332.68/x
  3. Step 3: Cross multiply
    18,425.90x = 27,641.74 × 7,332.68
  4. Step 4: Simplify right side
    18,425.90x = 202,688,034.06
  5. Step 5: Solve for x
    x = 202,688,034.06/18,425.90
  6. Step 6: Final answer
    x = 11,000.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.