Home / 13,713.02-20,571.10-6,688.02

Finding the Fourth Proportional to 13,713.02, 20,571.10 and 6,688.02

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Solution

The fourth proportional to 13,713.02, 20,571.10 and 6,688.02 is: 10,032.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,713.02 : 20,571.10 = 6,688.02 : x
  2. Step 2: Convert to fraction form
    13,713.02/20,571.10 = 6,688.02/x
  3. Step 3: Cross multiply
    13,713.02x = 20,571.10 × 6,688.02
  4. Step 4: Simplify right side
    13,713.02x = 137,579,928.22
  5. Step 5: Solve for x
    x = 137,579,928.22/13,713.02
  6. Step 6: Final answer
    x = 10,032.80

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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.