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Finding the Fourth Proportional to 29,718.88, 41,011.80 and 16,290.88

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Solution

The fourth proportional to 29,718.88, 41,011.80 and 16,290.88 is: 22,481.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,718.88 : 41,011.80 = 16,290.88 : x
  2. Step 2: Convert to fraction form
    29,718.88/41,011.80 = 16,290.88/x
  3. Step 3: Cross multiply
    29,718.88x = 41,011.80 × 16,290.88
  4. Step 4: Simplify right side
    29,718.88x = 668,118,312.38
  5. Step 5: Solve for x
    x = 668,118,312.38/29,718.88
  6. Step 6: Final answer
    x = 22,481.27

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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.