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Finding the Fourth Proportional to 70,188.58, 96,860.29 and 38,357.48

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Solution

The fourth proportional to 70,188.58, 96,860.29 and 38,357.48 is: 52,933.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,188.58 : 96,860.29 = 38,357.48 : x
  2. Step 2: Convert to fraction form
    70,188.58/96,860.29 = 38,357.48/x
  3. Step 3: Cross multiply
    70,188.58x = 96,860.29 × 38,357.48
  4. Step 4: Simplify right side
    70,188.58x = 3,715,316,854.65
  5. Step 5: Solve for x
    x = 3,715,316,854.65/70,188.58
  6. Step 6: Final answer
    x = 52,933.36

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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.