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Finding the Fourth Proportional to 48,605.13, 72,907.69 and 11,669.13

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Solution

The fourth proportional to 48,605.13, 72,907.69 and 11,669.13 is: 17,503.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,605.13 : 72,907.69 = 11,669.13 : x
  2. Step 2: Convert to fraction form
    48,605.13/72,907.69 = 11,669.13/x
  3. Step 3: Cross multiply
    48,605.13x = 72,907.69 × 11,669.13
  4. Step 4: Simplify right side
    48,605.13x = 850,769,312.61
  5. Step 5: Solve for x
    x = 850,769,312.61/48,605.13
  6. Step 6: Final answer
    x = 17,503.69

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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.