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Finding the Fourth Proportional to 11,503.69, 17,154.84 and 11,398.59

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Solution

The fourth proportional to 11,503.69, 17,154.84 and 11,398.59 is: 16,998.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,503.69 : 17,154.84 = 11,398.59 : x
  2. Step 2: Convert to fraction form
    11,503.69/17,154.84 = 11,398.59/x
  3. Step 3: Cross multiply
    11,503.69x = 17,154.84 × 11,398.59
  4. Step 4: Simplify right side
    11,503.69x = 195,541,030.42
  5. Step 5: Solve for x
    x = 195,541,030.42/11,503.69
  6. Step 6: Final answer
    x = 16,998.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.