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Finding the Fourth Proportional to 64,342.02, 88,770.66 and 38,838.66

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Solution

The fourth proportional to 64,342.02, 88,770.66 and 38,838.66 is: 53,584.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,342.02 : 88,770.66 = 38,838.66 : x
  2. Step 2: Convert to fraction form
    64,342.02/88,770.66 = 38,838.66/x
  3. Step 3: Cross multiply
    64,342.02x = 88,770.66 × 38,838.66
  4. Step 4: Simplify right side
    64,342.02x = 3,447,733,481.72
  5. Step 5: Solve for x
    x = 3,447,733,481.72/64,342.02
  6. Step 6: Final answer
    x = 53,584.48

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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.