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Finding the Fourth Proportional to 39,854.64, 59,788.44 and 13,556.64

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Solution

The fourth proportional to 39,854.64, 59,788.44 and 13,556.64 is: 20,337.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,854.64 : 59,788.44 = 13,556.64 : x
  2. Step 2: Convert to fraction form
    39,854.64/59,788.44 = 13,556.64/x
  3. Step 3: Cross multiply
    39,854.64x = 59,788.44 × 13,556.64
  4. Step 4: Simplify right side
    39,854.64x = 810,530,357.24
  5. Step 5: Solve for x
    x = 810,530,357.24/39,854.64
  6. Step 6: Final answer
    x = 20,337.16

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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.