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Finding the Fourth Proportional to 10,922.71, 16,385.11 and 4,347.35

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Solution

The fourth proportional to 10,922.71, 16,385.11 and 4,347.35 is: 6,521.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,922.71 : 16,385.11 = 4,347.35 : x
  2. Step 2: Convert to fraction form
    10,922.71/16,385.11 = 4,347.35/x
  3. Step 3: Cross multiply
    10,922.71x = 16,385.11 × 4,347.35
  4. Step 4: Simplify right side
    10,922.71x = 71,231,807.96
  5. Step 5: Solve for x
    x = 71,231,807.96/10,922.71
  6. Step 6: Final answer
    x = 6,521.44

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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.