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Finding the Fourth Proportional to 18,293.68, 27,440.54 and 5,146.06

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Solution

The fourth proportional to 18,293.68, 27,440.54 and 5,146.06 is: 7,719.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,293.68 : 27,440.54 = 5,146.06 : x
  2. Step 2: Convert to fraction form
    18,293.68/27,440.54 = 5,146.06/x
  3. Step 3: Cross multiply
    18,293.68x = 27,440.54 × 5,146.06
  4. Step 4: Simplify right side
    18,293.68x = 141,210,665.27
  5. Step 5: Solve for x
    x = 141,210,665.27/18,293.68
  6. Step 6: Final answer
    x = 7,719.10

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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.