Home / 25,707.11-35,443.47-19,664.71

Finding the Fourth Proportional to 25,707.11, 35,443.47 and 19,664.71

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Solution

The fourth proportional to 25,707.11, 35,443.47 and 19,664.71 is: 27,112.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,707.11 : 35,443.47 = 19,664.71 : x
  2. Step 2: Convert to fraction form
    25,707.11/35,443.47 = 19,664.71/x
  3. Step 3: Cross multiply
    25,707.11x = 35,443.47 × 19,664.71
  4. Step 4: Simplify right side
    25,707.11x = 696,985,544.08
  5. Step 5: Solve for x
    x = 696,985,544.08/25,707.11
  6. Step 6: Final answer
    x = 27,112.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.