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Finding the Fourth Proportional to 30,298.86, 41,808.22 and 16,868.32

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Solution

The fourth proportional to 30,298.86, 41,808.22 and 16,868.32 is: 23,275.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,298.86 : 41,808.22 = 16,868.32 : x
  2. Step 2: Convert to fraction form
    30,298.86/41,808.22 = 16,868.32/x
  3. Step 3: Cross multiply
    30,298.86x = 41,808.22 × 16,868.32
  4. Step 4: Simplify right side
    30,298.86x = 705,234,286.90
  5. Step 5: Solve for x
    x = 705,234,286.90/30,298.86
  6. Step 6: Final answer
    x = 23,275.93

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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.