Home / 31,693.13-47,545.35-10,640.03

Finding the Fourth Proportional to 31,693.13, 47,545.35 and 10,640.03

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Solution

The fourth proportional to 31,693.13, 47,545.35 and 10,640.03 is: 15,961.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,693.13 : 47,545.35 = 10,640.03 : x
  2. Step 2: Convert to fraction form
    31,693.13/47,545.35 = 10,640.03/x
  3. Step 3: Cross multiply
    31,693.13x = 47,545.35 × 10,640.03
  4. Step 4: Simplify right side
    31,693.13x = 505,883,712.63
  5. Step 5: Solve for x
    x = 505,883,712.63/31,693.13
  6. Step 6: Final answer
    x = 15,961.93

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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.