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Finding the Fourth Proportional to 16,980.93, 23,432.43 and 9,811.17

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Solution

The fourth proportional to 16,980.93, 23,432.43 and 9,811.17 is: 13,538.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,980.93 : 23,432.43 = 9,811.17 : x
  2. Step 2: Convert to fraction form
    16,980.93/23,432.43 = 9,811.17/x
  3. Step 3: Cross multiply
    16,980.93x = 23,432.43 × 9,811.17
  4. Step 4: Simplify right side
    16,980.93x = 229,899,554.24
  5. Step 5: Solve for x
    x = 229,899,554.24/16,980.93
  6. Step 6: Final answer
    x = 13,538.69

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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.