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Finding the Fourth Proportional to 34,703.91, 47,891.45 and 18,788.42

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Solution

The fourth proportional to 34,703.91, 47,891.45 and 18,788.42 is: 25,928.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,703.91 : 47,891.45 = 18,788.42 : x
  2. Step 2: Convert to fraction form
    34,703.91/47,891.45 = 18,788.42/x
  3. Step 3: Cross multiply
    34,703.91x = 47,891.45 × 18,788.42
  4. Step 4: Simplify right side
    34,703.91x = 899,804,843.71
  5. Step 5: Solve for x
    x = 899,804,843.71/34,703.91
  6. Step 6: Final answer
    x = 25,928.05

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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.