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Finding the Fourth Proportional to 48,514.34, 72,798.78 and 18,934.22

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Solution

The fourth proportional to 48,514.34, 72,798.78 and 18,934.22 is: 28,411.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,514.34 : 72,798.78 = 18,934.22 : x
  2. Step 2: Convert to fraction form
    48,514.34/72,798.78 = 18,934.22/x
  3. Step 3: Cross multiply
    48,514.34x = 72,798.78 × 18,934.22
  4. Step 4: Simplify right side
    48,514.34x = 1,378,388,116.25
  5. Step 5: Solve for x
    x = 1,378,388,116.25/48,514.34
  6. Step 6: Final answer
    x = 28,411.97

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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.