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Finding the Fourth Proportional to 15,794.86, 21,801.73 and 9,746.95

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Solution

The fourth proportional to 15,794.86, 21,801.73 and 9,746.95 is: 13,453.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,794.86 : 21,801.73 = 9,746.95 : x
  2. Step 2: Convert to fraction form
    15,794.86/21,801.73 = 9,746.95/x
  3. Step 3: Cross multiply
    15,794.86x = 21,801.73 × 9,746.95
  4. Step 4: Simplify right side
    15,794.86x = 212,500,287.94
  5. Step 5: Solve for x
    x = 212,500,287.94/15,794.86
  6. Step 6: Final answer
    x = 13,453.76

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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.