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Finding the Fourth Proportional to 48,636.59, 72,973.91 and 19,049.31

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Solution

The fourth proportional to 48,636.59, 72,973.91 and 19,049.31 is: 28,581.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,636.59 : 72,973.91 = 19,049.31 : x
  2. Step 2: Convert to fraction form
    48,636.59/72,973.91 = 19,049.31/x
  3. Step 3: Cross multiply
    48,636.59x = 72,973.91 × 19,049.31
  4. Step 4: Simplify right side
    48,636.59x = 1,390,102,681.13
  5. Step 5: Solve for x
    x = 1,390,102,681.13/48,636.59
  6. Step 6: Final answer
    x = 28,581.42

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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.