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Finding the Fourth Proportional to 64,212.15, 88,619.43 and 36,989.17

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Solution

The fourth proportional to 64,212.15, 88,619.43 and 36,989.17 is: 51,048.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,212.15 : 88,619.43 = 36,989.17 : x
  2. Step 2: Convert to fraction form
    64,212.15/88,619.43 = 36,989.17/x
  3. Step 3: Cross multiply
    64,212.15x = 88,619.43 × 36,989.17
  4. Step 4: Simplify right side
    64,212.15x = 3,277,959,161.57
  5. Step 5: Solve for x
    x = 3,277,959,161.57/64,212.15
  6. Step 6: Final answer
    x = 51,048.89

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1.5x scale

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.