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Finding the Fourth Proportional to 64,433.58, 88,910.88 and 38,955.30

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Solution

The fourth proportional to 64,433.58, 88,910.88 and 38,955.30 is: 53,753.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,433.58 : 88,910.88 = 38,955.30 : x
  2. Step 2: Convert to fraction form
    64,433.58/88,910.88 = 38,955.30/x
  3. Step 3: Cross multiply
    64,433.58x = 88,910.88 × 38,955.30
  4. Step 4: Simplify right side
    64,433.58x = 3,463,550,003.66
  5. Step 5: Solve for x
    x = 3,463,550,003.66/64,433.58
  6. Step 6: Final answer
    x = 53,753.80

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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.