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Finding the Fourth Proportional to 18,482.72, 27,721.04 and 5,332.23

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Solution

The fourth proportional to 18,482.72, 27,721.04 and 5,332.23 is: 7,997.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,482.72 : 27,721.04 = 5,332.23 : x
  2. Step 2: Convert to fraction form
    18,482.72/27,721.04 = 5,332.23/x
  3. Step 3: Cross multiply
    18,482.72x = 27,721.04 × 5,332.23
  4. Step 4: Simplify right side
    18,482.72x = 147,814,934.46
  5. Step 5: Solve for x
    x = 147,814,934.46/18,482.72
  6. Step 6: Final answer
    x = 7,997.47

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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.