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Finding the Fourth Proportional to 64,012.64, 88,353.25 and 38,883.20

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Solution

The fourth proportional to 64,012.64, 88,353.25 and 38,883.20 is: 53,668.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,012.64 : 88,353.25 = 38,883.20 : x
  2. Step 2: Convert to fraction form
    64,012.64/88,353.25 = 38,883.20/x
  3. Step 3: Cross multiply
    64,012.64x = 88,353.25 × 38,883.20
  4. Step 4: Simplify right side
    64,012.64x = 3,435,456,551.43
  5. Step 5: Solve for x
    x = 3,435,456,551.43/64,012.64
  6. Step 6: Final answer
    x = 53,668.41

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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.