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Finding the Fourth Proportional to 18,465.13, 27,697.69 and 4,614.13

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Solution

The fourth proportional to 18,465.13, 27,697.69 and 4,614.13 is: 6,921.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,465.13 : 27,697.69 = 4,614.13 : x
  2. Step 2: Convert to fraction form
    18,465.13/27,697.69 = 4,614.13/x
  3. Step 3: Cross multiply
    18,465.13x = 27,697.69 × 4,614.13
  4. Step 4: Simplify right side
    18,465.13x = 127,800,592.34
  5. Step 5: Solve for x
    x = 127,800,592.34/18,465.13
  6. Step 6: Final answer
    x = 6,921.19

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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.