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Finding the Fourth Proportional to 13,368.65, 20,053.04 and 8,173.31

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Solution

The fourth proportional to 13,368.65, 20,053.04 and 8,173.31 is: 12,260.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,368.65 : 20,053.04 = 8,173.31 : x
  2. Step 2: Convert to fraction form
    13,368.65/20,053.04 = 8,173.31/x
  3. Step 3: Cross multiply
    13,368.65x = 20,053.04 × 8,173.31
  4. Step 4: Simplify right side
    13,368.65x = 163,899,571.23
  5. Step 5: Solve for x
    x = 163,899,571.23/13,368.65
  6. Step 6: Final answer
    x = 12,260.00

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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.