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Finding the Fourth Proportional to 16,643.08, 22,966.50 and 9,191.08

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Solution

The fourth proportional to 16,643.08, 22,966.50 and 9,191.08 is: 12,683.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,643.08 : 22,966.50 = 9,191.08 : x
  2. Step 2: Convert to fraction form
    16,643.08/22,966.50 = 9,191.08/x
  3. Step 3: Cross multiply
    16,643.08x = 22,966.50 × 9,191.08
  4. Step 4: Simplify right side
    16,643.08x = 211,086,938.82
  5. Step 5: Solve for x
    x = 211,086,938.82/16,643.08
  6. Step 6: Final answer
    x = 12,683.17

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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.