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Finding the Fourth Proportional to 14,800.95, 20,424.93 and 8,086.38

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Solution

The fourth proportional to 14,800.95, 20,424.93 and 8,086.38 is: 11,159.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,800.95 : 20,424.93 = 8,086.38 : x
  2. Step 2: Convert to fraction form
    14,800.95/20,424.93 = 8,086.38/x
  3. Step 3: Cross multiply
    14,800.95x = 20,424.93 × 8,086.38
  4. Step 4: Simplify right side
    14,800.95x = 165,163,745.45
  5. Step 5: Solve for x
    x = 165,163,745.45/14,800.95
  6. Step 6: Final answer
    x = 11,159.00

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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.