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Finding the Fourth Proportional to 70,034.63, 96,647.78 and 38,203.65

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Solution

The fourth proportional to 70,034.63, 96,647.78 and 38,203.65 is: 52,721.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,034.63 : 96,647.78 = 38,203.65 : x
  2. Step 2: Convert to fraction form
    70,034.63/96,647.78 = 38,203.65/x
  3. Step 3: Cross multiply
    70,034.63x = 96,647.78 × 38,203.65
  4. Step 4: Simplify right side
    70,034.63x = 3,692,298,055.91
  5. Step 5: Solve for x
    x = 3,692,298,055.91/70,034.63
  6. Step 6: Final answer
    x = 52,721.04

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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.