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Finding the Fourth Proportional to 15,295.82, 22,894.47 and 7,890.08

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Solution

The fourth proportional to 15,295.82, 22,894.47 and 7,890.08 is: 11,809.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,295.82 : 22,894.47 = 7,890.08 : x
  2. Step 2: Convert to fraction form
    15,295.82/22,894.47 = 7,890.08/x
  3. Step 3: Cross multiply
    15,295.82x = 22,894.47 × 7,890.08
  4. Step 4: Simplify right side
    15,295.82x = 180,639,085.39
  5. Step 5: Solve for x
    x = 180,639,085.39/15,295.82
  6. Step 6: Final answer
    x = 11,809.71

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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.