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Finding the Fourth Proportional to 48,243.76, 72,368.04 and 14,986.48

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Solution

The fourth proportional to 48,243.76, 72,368.04 and 14,986.48 is: 22,480.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,243.76 : 72,368.04 = 14,986.48 : x
  2. Step 2: Convert to fraction form
    48,243.76/72,368.04 = 14,986.48/x
  3. Step 3: Cross multiply
    48,243.76x = 72,368.04 × 14,986.48
  4. Step 4: Simplify right side
    48,243.76x = 1,084,542,184.10
  5. Step 5: Solve for x
    x = 1,084,542,184.10/48,243.76
  6. Step 6: Final answer
    x = 22,480.47

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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.