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Finding the Fourth Proportional to 48,726.72, 73,119.22 and 21,024.72

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Solution

The fourth proportional to 48,726.72, 73,119.22 and 21,024.72 is: 31,549.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,726.72 : 73,119.22 = 21,024.72 : x
  2. Step 2: Convert to fraction form
    48,726.72/73,119.22 = 21,024.72/x
  3. Step 3: Cross multiply
    48,726.72x = 73,119.22 × 21,024.72
  4. Step 4: Simplify right side
    48,726.72x = 1,537,311,127.12
  5. Step 5: Solve for x
    x = 1,537,311,127.12/48,726.72
  6. Step 6: Final answer
    x = 31,549.65

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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.