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Finding the Fourth Proportional to 16,866, 25,259.64 and 13,332.28

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Solution

The fourth proportional to 16,866, 25,259.64 and 13,332.28 is: 19,967.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,866 : 25,259.64 = 13,332.28 : x
  2. Step 2: Convert to fraction form
    16,866/25,259.64 = 13,332.28/x
  3. Step 3: Cross multiply
    16,866x = 25,259.64 × 13,332.28
  4. Step 4: Simplify right side
    16,866x = 336,768,593.18
  5. Step 5: Solve for x
    x = 336,768,593.18/16,866
  6. Step 6: Final answer
    x = 19,967.31

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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.