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Finding the Fourth Proportional to 14,104.70, 19,471.11 and 8,807.30

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Solution

The fourth proportional to 14,104.70, 19,471.11 and 8,807.30 is: 12,158.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,104.70 : 19,471.11 = 8,807.30 : x
  2. Step 2: Convert to fraction form
    14,104.70/19,471.11 = 8,807.30/x
  3. Step 3: Cross multiply
    14,104.70x = 19,471.11 × 8,807.30
  4. Step 4: Simplify right side
    14,104.70x = 171,487,907.10
  5. Step 5: Solve for x
    x = 171,487,907.10/14,104.70
  6. Step 6: Final answer
    x = 12,158.21

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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.