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Finding the Fourth Proportional to 14,774.40, 20,388.64 and 8,060.03

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Solution

The fourth proportional to 14,774.40, 20,388.64 and 8,060.03 is: 11,122.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,774.40 : 20,388.64 = 8,060.03 : x
  2. Step 2: Convert to fraction form
    14,774.40/20,388.64 = 8,060.03/x
  3. Step 3: Cross multiply
    14,774.40x = 20,388.64 × 8,060.03
  4. Step 4: Simplify right side
    14,774.40x = 164,333,050.06
  5. Step 5: Solve for x
    x = 164,333,050.06/14,774.40
  6. Step 6: Final answer
    x = 11,122.82

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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.