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Finding the Fourth Proportional to 15,662.76, 21,623.94 and 10,362.12

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Solution

The fourth proportional to 15,662.76, 21,623.94 and 10,362.12 is: 14,305.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,662.76 : 21,623.94 = 10,362.12 : x
  2. Step 2: Convert to fraction form
    15,662.76/21,623.94 = 10,362.12/x
  3. Step 3: Cross multiply
    15,662.76x = 21,623.94 × 10,362.12
  4. Step 4: Simplify right side
    15,662.76x = 224,069,861.15
  5. Step 5: Solve for x
    x = 224,069,861.15/15,662.76
  6. Step 6: Final answer
    x = 14,305.90

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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.