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Finding the Fourth Proportional to 84,034.32, 126,070.92 and 37,290.84

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Solution

The fourth proportional to 84,034.32, 126,070.92 and 37,290.84 is: 55,944.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,034.32 : 126,070.92 = 37,290.84 : x
  2. Step 2: Convert to fraction form
    84,034.32/126,070.92 = 37,290.84/x
  3. Step 3: Cross multiply
    84,034.32x = 126,070.92 × 37,290.84
  4. Step 4: Simplify right side
    84,034.32x = 4,701,290,506.37
  5. Step 5: Solve for x
    x = 4,701,290,506.37/84,034.32
  6. Step 6: Final answer
    x = 55,944.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.