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Finding the Fourth Proportional to 19,952.76, 27,335.40 and 19,205.40

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Solution

The fourth proportional to 19,952.76, 27,335.40 and 19,205.40 is: 26,311.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,952.76 : 27,335.40 = 19,205.40 : x
  2. Step 2: Convert to fraction form
    19,952.76/27,335.40 = 19,205.40/x
  3. Step 3: Cross multiply
    19,952.76x = 27,335.40 × 19,205.40
  4. Step 4: Simplify right side
    19,952.76x = 524,987,291.16
  5. Step 5: Solve for x
    x = 524,987,291.16/19,952.76
  6. Step 6: Final answer
    x = 26,311.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.