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Finding the Fourth Proportional to 15,029.70, 20,733.99 and 9,726.22

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Solution

The fourth proportional to 15,029.70, 20,733.99 and 9,726.22 is: 13,417.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,029.70 : 20,733.99 = 9,726.22 : x
  2. Step 2: Convert to fraction form
    15,029.70/20,733.99 = 9,726.22/x
  3. Step 3: Cross multiply
    15,029.70x = 20,733.99 × 9,726.22
  4. Step 4: Simplify right side
    15,029.70x = 201,663,348.22
  5. Step 5: Solve for x
    x = 201,663,348.22/15,029.70
  6. Step 6: Final answer
    x = 13,417.66

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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.