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Finding the Fourth Proportional to 15,794.50, 21,800.76 and 9,822.62

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Solution

The fourth proportional to 15,794.50, 21,800.76 and 9,822.62 is: 13,557.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,794.50 : 21,800.76 = 9,822.62 : x
  2. Step 2: Convert to fraction form
    15,794.50/21,800.76 = 9,822.62/x
  3. Step 3: Cross multiply
    15,794.50x = 21,800.76 × 9,822.62
  4. Step 4: Simplify right side
    15,794.50x = 214,140,581.19
  5. Step 5: Solve for x
    x = 214,140,581.19/15,794.50
  6. Step 6: Final answer
    x = 13,557.92

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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.