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Finding the Fourth Proportional to 75,566.40, 113,344.80 and 25,646.40

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Solution

The fourth proportional to 75,566.40, 113,344.80 and 25,646.40 is: 38,467.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,566.40 : 113,344.80 = 25,646.40 : x
  2. Step 2: Convert to fraction form
    75,566.40/113,344.80 = 25,646.40/x
  3. Step 3: Cross multiply
    75,566.40x = 113,344.80 × 25,646.40
  4. Step 4: Simplify right side
    75,566.40x = 2,906,886,078.72
  5. Step 5: Solve for x
    x = 2,906,886,078.72/75,566.40
  6. Step 6: Final answer
    x = 38,467.97

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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.