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Finding the Fourth Proportional to 14,028.86, 19,360.40 and 8,062.40

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Solution

The fourth proportional to 14,028.86, 19,360.40 and 8,062.40 is: 11,126.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,028.86 : 19,360.40 = 8,062.40 : x
  2. Step 2: Convert to fraction form
    14,028.86/19,360.40 = 8,062.40/x
  3. Step 3: Cross multiply
    14,028.86x = 19,360.40 × 8,062.40
  4. Step 4: Simplify right side
    14,028.86x = 156,091,288.96
  5. Step 5: Solve for x
    x = 156,091,288.96/14,028.86
  6. Step 6: Final answer
    x = 11,126.44

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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.