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Finding the Fourth Proportional to 29,627.99, 40,889.15 and 16,885.07

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Solution

The fourth proportional to 29,627.99, 40,889.15 and 16,885.07 is: 23,302.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,627.99 : 40,889.15 = 16,885.07 : x
  2. Step 2: Convert to fraction form
    29,627.99/40,889.15 = 16,885.07/x
  3. Step 3: Cross multiply
    29,627.99x = 40,889.15 × 16,885.07
  4. Step 4: Simplify right side
    29,627.99x = 690,416,159.99
  5. Step 5: Solve for x
    x = 690,416,159.99/29,627.99
  6. Step 6: Final answer
    x = 23,302.83

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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.