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Finding the Fourth Proportional to 15,308.92, 21,124.85 and 8,593.01

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Solution

The fourth proportional to 15,308.92, 21,124.85 and 8,593.01 is: 11,857.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,308.92 : 21,124.85 = 8,593.01 : x
  2. Step 2: Convert to fraction form
    15,308.92/21,124.85 = 8,593.01/x
  3. Step 3: Cross multiply
    15,308.92x = 21,124.85 × 8,593.01
  4. Step 4: Simplify right side
    15,308.92x = 181,526,015.97
  5. Step 5: Solve for x
    x = 181,526,015.97/15,308.92
  6. Step 6: Final answer
    x = 11,857.53

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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.