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Finding the Fourth Proportional to 15,168.41, 20,935.16 and 8,799.08

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Solution

The fourth proportional to 15,168.41, 20,935.16 and 8,799.08 is: 12,144.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,168.41 : 20,935.16 = 8,799.08 : x
  2. Step 2: Convert to fraction form
    15,168.41/20,935.16 = 8,799.08/x
  3. Step 3: Cross multiply
    15,168.41x = 20,935.16 × 8,799.08
  4. Step 4: Simplify right side
    15,168.41x = 184,210,149.74
  5. Step 5: Solve for x
    x = 184,210,149.74/15,168.41
  6. Step 6: Final answer
    x = 12,144.32

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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.