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Finding the Fourth Proportional to 14,602.88, 20,131.00 and 10,403.84

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Solution

The fourth proportional to 14,602.88, 20,131.00 and 10,403.84 is: 14,342.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,602.88 : 20,131.00 = 10,403.84 : x
  2. Step 2: Convert to fraction form
    14,602.88/20,131.00 = 10,403.84/x
  3. Step 3: Cross multiply
    14,602.88x = 20,131.00 × 10,403.84
  4. Step 4: Simplify right side
    14,602.88x = 209,439,727.36
  5. Step 5: Solve for x
    x = 209,439,727.36/14,602.88
  6. Step 6: Final answer
    x = 14,342.36

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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.