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Finding the Fourth Proportional to 19,568.88, 27,008.52 and 11,615.50

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Solution

The fourth proportional to 19,568.88, 27,008.52 and 11,615.50 is: 16,031.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,568.88 : 27,008.52 = 11,615.50 : x
  2. Step 2: Convert to fraction form
    19,568.88/27,008.52 = 11,615.50/x
  3. Step 3: Cross multiply
    19,568.88x = 27,008.52 × 11,615.50
  4. Step 4: Simplify right side
    19,568.88x = 313,717,464.06
  5. Step 5: Solve for x
    x = 313,717,464.06/19,568.88
  6. Step 6: Final answer
    x = 16,031.45

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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.