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Finding the Fourth Proportional to 13,872.94, 20,807.12 and 5,973.32

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Solution

The fourth proportional to 13,872.94, 20,807.12 and 5,973.32 is: 8,959.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,872.94 : 20,807.12 = 5,973.32 : x
  2. Step 2: Convert to fraction form
    13,872.94/20,807.12 = 5,973.32/x
  3. Step 3: Cross multiply
    13,872.94x = 20,807.12 × 5,973.32
  4. Step 4: Simplify right side
    13,872.94x = 124,287,586.04
  5. Step 5: Solve for x
    x = 124,287,586.04/13,872.94
  6. Step 6: Final answer
    x = 8,959.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.