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Finding the Fourth Proportional to 25,920.99, 38,888.28 and 8,150.93

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Solution

The fourth proportional to 25,920.99, 38,888.28 and 8,150.93 is: 12,228.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,920.99 : 38,888.28 = 8,150.93 : x
  2. Step 2: Convert to fraction form
    25,920.99/38,888.28 = 8,150.93/x
  3. Step 3: Cross multiply
    25,920.99x = 38,888.28 × 8,150.93
  4. Step 4: Simplify right side
    25,920.99x = 316,975,453.66
  5. Step 5: Solve for x
    x = 316,975,453.66/25,920.99
  6. Step 6: Final answer
    x = 12,228.52

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Double scale
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1.5x scale

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.