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Finding the Fourth Proportional to 64,031.88, 88,365.40 and 35,351.44

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Solution

The fourth proportional to 64,031.88, 88,365.40 and 35,351.44 is: 48,785.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,031.88 : 88,365.40 = 35,351.44 : x
  2. Step 2: Convert to fraction form
    64,031.88/88,365.40 = 35,351.44/x
  3. Step 3: Cross multiply
    64,031.88x = 88,365.40 × 35,351.44
  4. Step 4: Simplify right side
    64,031.88x = 3,123,844,136.18
  5. Step 5: Solve for x
    x = 3,123,844,136.18/64,031.88
  6. Step 6: Final answer
    x = 48,785.76

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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.