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Finding the Fourth Proportional to 70,089.05, 96,719.22 and 38,251.77

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Solution

The fourth proportional to 70,089.05, 96,719.22 and 38,251.77 is: 52,785.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,089.05 : 96,719.22 = 38,251.77 : x
  2. Step 2: Convert to fraction form
    70,089.05/96,719.22 = 38,251.77/x
  3. Step 3: Cross multiply
    70,089.05x = 96,719.22 × 38,251.77
  4. Step 4: Simplify right side
    70,089.05x = 3,699,681,358.02
  5. Step 5: Solve for x
    x = 3,699,681,358.02/70,089.05
  6. Step 6: Final answer
    x = 52,785.44

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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.