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Finding the Fourth Proportional to 35,479.91, 53,223.98 and 11,789.57

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Solution

The fourth proportional to 35,479.91, 53,223.98 and 11,789.57 is: 17,685.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,479.91 : 53,223.98 = 11,789.57 : x
  2. Step 2: Convert to fraction form
    35,479.91/53,223.98 = 11,789.57/x
  3. Step 3: Cross multiply
    35,479.91x = 53,223.98 × 11,789.57
  4. Step 4: Simplify right side
    35,479.91x = 627,487,512.82
  5. Step 5: Solve for x
    x = 627,487,512.82/35,479.91
  6. Step 6: Final answer
    x = 17,685.72

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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.