Home / 25,105.39-34,645.79-13,774.68

Finding the Fourth Proportional to 25,105.39, 34,645.79 and 13,774.68

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Solution

The fourth proportional to 25,105.39, 34,645.79 and 13,774.68 is: 19,009.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,105.39 : 34,645.79 = 13,774.68 : x
  2. Step 2: Convert to fraction form
    25,105.39/34,645.79 = 13,774.68/x
  3. Step 3: Cross multiply
    25,105.39x = 34,645.79 × 13,774.68
  4. Step 4: Simplify right side
    25,105.39x = 477,234,670.60
  5. Step 5: Solve for x
    x = 477,234,670.60/25,105.39
  6. Step 6: Final answer
    x = 19,009.25

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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.