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Finding the Fourth Proportional to 19,167.52, 28,751.76 and 6,019.60

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Solution

The fourth proportional to 19,167.52, 28,751.76 and 6,019.60 is: 9,029.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,167.52 : 28,751.76 = 6,019.60 : x
  2. Step 2: Convert to fraction form
    19,167.52/28,751.76 = 6,019.60/x
  3. Step 3: Cross multiply
    19,167.52x = 28,751.76 × 6,019.60
  4. Step 4: Simplify right side
    19,167.52x = 173,074,094.50
  5. Step 5: Solve for x
    x = 173,074,094.50/19,167.52
  6. Step 6: Final answer
    x = 9,029.55

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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.