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Finding the Fourth Proportional to 15,672.92, 21,628.65 and 8,599.37

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Solution

The fourth proportional to 15,672.92, 21,628.65 and 8,599.37 is: 11,867.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,672.92 : 21,628.65 = 8,599.37 : x
  2. Step 2: Convert to fraction form
    15,672.92/21,628.65 = 8,599.37/x
  3. Step 3: Cross multiply
    15,672.92x = 21,628.65 × 8,599.37
  4. Step 4: Simplify right side
    15,672.92x = 185,992,612.81
  5. Step 5: Solve for x
    x = 185,992,612.81/15,672.92
  6. Step 6: Final answer
    x = 11,867.14

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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.