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Finding the Fourth Proportional to 11,326.84, 16,990.10 and 6,935.07

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Solution

The fourth proportional to 11,326.84, 16,990.10 and 6,935.07 is: 10,402.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,326.84 : 16,990.10 = 6,935.07 : x
  2. Step 2: Convert to fraction form
    11,326.84/16,990.10 = 6,935.07/x
  3. Step 3: Cross multiply
    11,326.84x = 16,990.10 × 6,935.07
  4. Step 4: Simplify right side
    11,326.84x = 117,827,531.29
  5. Step 5: Solve for x
    x = 117,827,531.29/11,326.84
  6. Step 6: Final answer
    x = 10,402.51

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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.