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Finding the Fourth Proportional to 18,468.64, 27,703.52 and 7,223.53

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Solution

The fourth proportional to 18,468.64, 27,703.52 and 7,223.53 is: 10,835.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,468.64 : 27,703.52 = 7,223.53 : x
  2. Step 2: Convert to fraction form
    18,468.64/27,703.52 = 7,223.53/x
  3. Step 3: Cross multiply
    18,468.64x = 27,703.52 × 7,223.53
  4. Step 4: Simplify right side
    18,468.64x = 200,117,207.83
  5. Step 5: Solve for x
    x = 200,117,207.83/18,468.64
  6. Step 6: Final answer
    x = 10,835.51

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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.