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Finding the Fourth Proportional to 34,330.67, 51,412.17 and 21,164.93

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Solution

The fourth proportional to 34,330.67, 51,412.17 and 21,164.93 is: 31,695.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,330.67 : 51,412.17 = 21,164.93 : x
  2. Step 2: Convert to fraction form
    34,330.67/51,412.17 = 21,164.93/x
  3. Step 3: Cross multiply
    34,330.67x = 51,412.17 × 21,164.93
  4. Step 4: Simplify right side
    34,330.67x = 1,088,134,979.20
  5. Step 5: Solve for x
    x = 1,088,134,979.20/34,330.67
  6. Step 6: Final answer
    x = 31,695.71

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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.