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Finding the Fourth Proportional to 17,989.68, 26,984.52 and 4,842.08

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Solution

The fourth proportional to 17,989.68, 26,984.52 and 4,842.08 is: 7,263.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,989.68 : 26,984.52 = 4,842.08 : x
  2. Step 2: Convert to fraction form
    17,989.68/26,984.52 = 4,842.08/x
  3. Step 3: Cross multiply
    17,989.68x = 26,984.52 × 4,842.08
  4. Step 4: Simplify right side
    17,989.68x = 130,661,204.60
  5. Step 5: Solve for x
    x = 130,661,204.60/17,989.68
  6. Step 6: Final answer
    x = 7,263.12

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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.