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Finding the Fourth Proportional to 14,408.92, 19,883.64 and 8,036.20

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Solution

The fourth proportional to 14,408.92, 19,883.64 and 8,036.20 is: 11,089.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,408.92 : 19,883.64 = 8,036.20 : x
  2. Step 2: Convert to fraction form
    14,408.92/19,883.64 = 8,036.20/x
  3. Step 3: Cross multiply
    14,408.92x = 19,883.64 × 8,036.20
  4. Step 4: Simplify right side
    14,408.92x = 159,788,907.77
  5. Step 5: Solve for x
    x = 159,788,907.77/14,408.92
  6. Step 6: Final answer
    x = 11,089.58

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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.