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Finding the Fourth Proportional to 19,995.69, 27,597.92 and 11,503.53

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Solution

The fourth proportional to 19,995.69, 27,597.92 and 11,503.53 is: 15,877.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,995.69 : 27,597.92 = 11,503.53 : x
  2. Step 2: Convert to fraction form
    19,995.69/27,597.92 = 11,503.53/x
  3. Step 3: Cross multiply
    19,995.69x = 27,597.92 × 11,503.53
  4. Step 4: Simplify right side
    19,995.69x = 317,473,443.14
  5. Step 5: Solve for x
    x = 317,473,443.14/19,995.69
  6. Step 6: Final answer
    x = 15,877.09

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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.