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Finding the Fourth Proportional to 48,689.64, 73,008.54 and 28,707.48

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Solution

The fourth proportional to 48,689.64, 73,008.54 and 28,707.48 is: 43,045.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,689.64 : 73,008.54 = 28,707.48 : x
  2. Step 2: Convert to fraction form
    48,689.64/73,008.54 = 28,707.48/x
  3. Step 3: Cross multiply
    48,689.64x = 73,008.54 × 28,707.48
  4. Step 4: Simplify right side
    48,689.64x = 2,095,891,201.88
  5. Step 5: Solve for x
    x = 2,095,891,201.88/48,689.64
  6. Step 6: Final answer
    x = 43,045.94

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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.