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Finding the Fourth Proportional to 16,354.31, 22,569.64 and 9,281.39

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Solution

The fourth proportional to 16,354.31, 22,569.64 and 9,281.39 is: 12,808.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,354.31 : 22,569.64 = 9,281.39 : x
  2. Step 2: Convert to fraction form
    16,354.31/22,569.64 = 9,281.39/x
  3. Step 3: Cross multiply
    16,354.31x = 22,569.64 × 9,281.39
  4. Step 4: Simplify right side
    16,354.31x = 209,477,494.95
  5. Step 5: Solve for x
    x = 209,477,494.95/16,354.31
  6. Step 6: Final answer
    x = 12,808.71

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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.