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Finding the Fourth Proportional to 18,215.71, 27,323.61 and 5,068.08

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Solution

The fourth proportional to 18,215.71, 27,323.61 and 5,068.08 is: 7,602.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,215.71 : 27,323.61 = 5,068.08 : x
  2. Step 2: Convert to fraction form
    18,215.71/27,323.61 = 5,068.08/x
  3. Step 3: Cross multiply
    18,215.71x = 27,323.61 × 5,068.08
  4. Step 4: Simplify right side
    18,215.71x = 138,478,241.37
  5. Step 5: Solve for x
    x = 138,478,241.37/18,215.71
  6. Step 6: Final answer
    x = 7,602.13

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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.