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Finding the Fourth Proportional to 64,448.73, 88,919.30 and 37,572.21

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Solution

The fourth proportional to 64,448.73, 88,919.30 and 37,572.21 is: 51,838.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,448.73 : 88,919.30 = 37,572.21 : x
  2. Step 2: Convert to fraction form
    64,448.73/88,919.30 = 37,572.21/x
  3. Step 3: Cross multiply
    64,448.73x = 88,919.30 × 37,572.21
  4. Step 4: Simplify right side
    64,448.73x = 3,340,894,168.06
  5. Step 5: Solve for x
    x = 3,340,894,168.06/64,448.73
  6. Step 6: Final answer
    x = 51,838.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.