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Finding the Fourth Proportional to 20,594.88, 30,867.60 and 9,486.32

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Solution

The fourth proportional to 20,594.88, 30,867.60 and 9,486.32 is: 14,218.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,594.88 : 30,867.60 = 9,486.32 : x
  2. Step 2: Convert to fraction form
    20,594.88/30,867.60 = 9,486.32/x
  3. Step 3: Cross multiply
    20,594.88x = 30,867.60 × 9,486.32
  4. Step 4: Simplify right side
    20,594.88x = 292,819,931.23
  5. Step 5: Solve for x
    x = 292,819,931.23/20,594.88
  6. Step 6: Final answer
    x = 14,218.09

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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.