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Finding the Fourth Proportional to 70,010.60, 96,620.40 and 39,805.43

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Solution

The fourth proportional to 70,010.60, 96,620.40 and 39,805.43 is: 54,934.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,010.60 : 96,620.40 = 39,805.43 : x
  2. Step 2: Convert to fraction form
    70,010.60/96,620.40 = 39,805.43/x
  3. Step 3: Cross multiply
    70,010.60x = 96,620.40 × 39,805.43
  4. Step 4: Simplify right side
    70,010.60x = 3,846,016,085.67
  5. Step 5: Solve for x
    x = 3,846,016,085.67/70,010.60
  6. Step 6: Final answer
    x = 54,934.77

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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.