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Finding the Fourth Proportional to 64,608.48, 89,159.22 and 36,314.28

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Solution

The fourth proportional to 64,608.48, 89,159.22 and 36,314.28 is: 50,113.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,608.48 : 89,159.22 = 36,314.28 : x
  2. Step 2: Convert to fraction form
    64,608.48/89,159.22 = 36,314.28/x
  3. Step 3: Cross multiply
    64,608.48x = 89,159.22 × 36,314.28
  4. Step 4: Simplify right side
    64,608.48x = 3,237,752,879.66
  5. Step 5: Solve for x
    x = 3,237,752,879.66/64,608.48
  6. Step 6: Final answer
    x = 50,113.44

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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.