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Finding the Fourth Proportional to 11,822.59, 17,681.59 and 10,515.52

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Solution

The fourth proportional to 11,822.59, 17,681.59 and 10,515.52 is: 15,726.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,822.59 : 17,681.59 = 10,515.52 : x
  2. Step 2: Convert to fraction form
    11,822.59/17,681.59 = 10,515.52/x
  3. Step 3: Cross multiply
    11,822.59x = 17,681.59 × 10,515.52
  4. Step 4: Simplify right side
    11,822.59x = 185,931,148.52
  5. Step 5: Solve for x
    x = 185,931,148.52/11,822.59
  6. Step 6: Final answer
    x = 15,726.77

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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.