Home / 25,699.47-38,551.77-6,979.81

Finding the Fourth Proportional to 25,699.47, 38,551.77 and 6,979.81

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Solution

The fourth proportional to 25,699.47, 38,551.77 and 6,979.81 is: 10,470.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,699.47 : 38,551.77 = 6,979.81 : x
  2. Step 2: Convert to fraction form
    25,699.47/38,551.77 = 6,979.81/x
  3. Step 3: Cross multiply
    25,699.47x = 38,551.77 × 6,979.81
  4. Step 4: Simplify right side
    25,699.47x = 269,084,029.76
  5. Step 5: Solve for x
    x = 269,084,029.76/25,699.47
  6. Step 6: Final answer
    x = 10,470.41

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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.