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Finding the Fourth Proportional to 72,437.51, 108,593.46 and 28,033.70

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Solution

The fourth proportional to 72,437.51, 108,593.46 and 28,033.70 is: 42,026.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,437.51 : 108,593.46 = 28,033.70 : x
  2. Step 2: Convert to fraction form
    72,437.51/108,593.46 = 28,033.70/x
  3. Step 3: Cross multiply
    72,437.51x = 108,593.46 × 28,033.70
  4. Step 4: Simplify right side
    72,437.51x = 3,044,276,479.60
  5. Step 5: Solve for x
    x = 3,044,276,479.60/72,437.51
  6. Step 6: Final answer
    x = 42,026.24

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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.