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Finding the Fourth Proportional to 18,228.17, 27,342.53 and 6,381.51

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Solution

The fourth proportional to 18,228.17, 27,342.53 and 6,381.51 is: 9,572.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,228.17 : 27,342.53 = 6,381.51 : x
  2. Step 2: Convert to fraction form
    18,228.17/27,342.53 = 6,381.51/x
  3. Step 3: Cross multiply
    18,228.17x = 27,342.53 × 6,381.51
  4. Step 4: Simplify right side
    18,228.17x = 174,486,596.71
  5. Step 5: Solve for x
    x = 174,486,596.71/18,228.17
  6. Step 6: Final answer
    x = 9,572.36

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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.