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Finding the Fourth Proportional to 46,253.70, 69,360.03 and 21,287.70

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Solution

The fourth proportional to 46,253.70, 69,360.03 and 21,287.70 is: 31,922.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,253.70 : 69,360.03 = 21,287.70 : x
  2. Step 2: Convert to fraction form
    46,253.70/69,360.03 = 21,287.70/x
  3. Step 3: Cross multiply
    46,253.70x = 69,360.03 × 21,287.70
  4. Step 4: Simplify right side
    46,253.70x = 1,476,515,510.63
  5. Step 5: Solve for x
    x = 1,476,515,510.63/46,253.70
  6. Step 6: Final answer
    x = 31,922.11

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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.