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Finding the Fourth Proportional to 38,894.50, 53,674.68 and 22,127.50

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Solution

The fourth proportional to 38,894.50, 53,674.68 and 22,127.50 is: 30,536.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,894.50 : 53,674.68 = 22,127.50 : x
  2. Step 2: Convert to fraction form
    38,894.50/53,674.68 = 22,127.50/x
  3. Step 3: Cross multiply
    38,894.50x = 53,674.68 × 22,127.50
  4. Step 4: Simplify right side
    38,894.50x = 1,187,686,481.70
  5. Step 5: Solve for x
    x = 1,187,686,481.70/38,894.50
  6. Step 6: Final answer
    x = 30,536.10

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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.