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Finding the Fourth Proportional to 70,070.08, 96,694.86 and 38,239

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Solution

The fourth proportional to 70,070.08, 96,694.86 and 38,239 is: 52,768.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,070.08 : 96,694.86 = 38,239 : x
  2. Step 2: Convert to fraction form
    70,070.08/96,694.86 = 38,239/x
  3. Step 3: Cross multiply
    70,070.08x = 96,694.86 × 38,239
  4. Step 4: Simplify right side
    70,070.08x = 3,697,514,751.54
  5. Step 5: Solve for x
    x = 3,697,514,751.54/70,070.08
  6. Step 6: Final answer
    x = 52,768.81

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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.