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Finding the Fourth Proportional to 26,574.60, 39,864.78 and 9,942.60

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Solution

The fourth proportional to 26,574.60, 39,864.78 and 9,942.60 is: 14,914.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,574.60 : 39,864.78 = 9,942.60 : x
  2. Step 2: Convert to fraction form
    26,574.60/39,864.78 = 9,942.60/x
  3. Step 3: Cross multiply
    26,574.60x = 39,864.78 × 9,942.60
  4. Step 4: Simplify right side
    26,574.60x = 396,359,561.63
  5. Step 5: Solve for x
    x = 396,359,561.63/26,574.60
  6. Step 6: Final answer
    x = 14,914.98

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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.