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Finding the Fourth Proportional to 71,199.93, 98,256.41 and 38,934.69

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Solution

The fourth proportional to 71,199.93, 98,256.41 and 38,934.69 is: 53,730.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,199.93 : 98,256.41 = 38,934.69 : x
  2. Step 2: Convert to fraction form
    71,199.93/98,256.41 = 38,934.69/x
  3. Step 3: Cross multiply
    71,199.93x = 98,256.41 × 38,934.69
  4. Step 4: Simplify right side
    71,199.93x = 3,825,582,669.19
  5. Step 5: Solve for x
    x = 3,825,582,669.19/71,199.93
  6. Step 6: Final answer
    x = 53,730.15

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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.