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Finding the Fourth Proportional to 29,312.95, 43,993.05 and 16,670.47

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Solution

The fourth proportional to 29,312.95, 43,993.05 and 16,670.47 is: 25,019.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,312.95 : 43,993.05 = 16,670.47 : x
  2. Step 2: Convert to fraction form
    29,312.95/43,993.05 = 16,670.47/x
  3. Step 3: Cross multiply
    29,312.95x = 43,993.05 × 16,670.47
  4. Step 4: Simplify right side
    29,312.95x = 733,384,820.23
  5. Step 5: Solve for x
    x = 733,384,820.23/29,312.95
  6. Step 6: Final answer
    x = 25,019.14

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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.