Home / 25,531.07-38,296.86-7,764.60

Finding the Fourth Proportional to 25,531.07, 38,296.86 and 7,764.60

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Solution

The fourth proportional to 25,531.07, 38,296.86 and 7,764.60 is: 11,646.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,531.07 : 38,296.86 = 7,764.60 : x
  2. Step 2: Convert to fraction form
    25,531.07/38,296.86 = 7,764.60/x
  3. Step 3: Cross multiply
    25,531.07x = 38,296.86 × 7,764.60
  4. Step 4: Simplify right side
    25,531.07x = 297,359,913.65
  5. Step 5: Solve for x
    x = 297,359,913.65/25,531.07
  6. Step 6: Final answer
    x = 11,646.98

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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.