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Finding the Fourth Proportional to 19,062.74, 28,605 and 14,891.03

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Solution

The fourth proportional to 19,062.74, 28,605 and 14,891.03 is: 22,345.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,062.74 : 28,605 = 14,891.03 : x
  2. Step 2: Convert to fraction form
    19,062.74/28,605 = 14,891.03/x
  3. Step 3: Cross multiply
    19,062.74x = 28,605 × 14,891.03
  4. Step 4: Simplify right side
    19,062.74x = 425,957,770.13
  5. Step 5: Solve for x
    x = 425,957,770.13/19,062.74
  6. Step 6: Final answer
    x = 22,345.05

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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.