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Finding the Fourth Proportional to 14,774.55, 20,388.11 and 8,060.11

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Solution

The fourth proportional to 14,774.55, 20,388.11 and 8,060.11 is: 11,122.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,774.55 : 20,388.11 = 8,060.11 : x
  2. Step 2: Convert to fraction form
    14,774.55/20,388.11 = 8,060.11/x
  3. Step 3: Cross multiply
    14,774.55x = 20,388.11 × 8,060.11
  4. Step 4: Simplify right side
    14,774.55x = 164,330,368.99
  5. Step 5: Solve for x
    x = 164,330,368.99/14,774.55
  6. Step 6: Final answer
    x = 11,122.53

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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.