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Finding the Fourth Proportional to 34,778.08, 47,995.78 and 19,672.08

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Solution

The fourth proportional to 34,778.08, 47,995.78 and 19,672.08 is: 27,148.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,778.08 : 47,995.78 = 19,672.08 : x
  2. Step 2: Convert to fraction form
    34,778.08/47,995.78 = 19,672.08/x
  3. Step 3: Cross multiply
    34,778.08x = 47,995.78 × 19,672.08
  4. Step 4: Simplify right side
    34,778.08x = 944,176,823.82
  5. Step 5: Solve for x
    x = 944,176,823.82/34,778.08
  6. Step 6: Final answer
    x = 27,148.62

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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.