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Finding the Fourth Proportional to 14,952, 20,634.40 and 8,328

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Solution

The fourth proportional to 14,952, 20,634.40 and 8,328 is: 11,493.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,952 : 20,634.40 = 8,328 : x
  2. Step 2: Convert to fraction form
    14,952/20,634.40 = 8,328/x
  3. Step 3: Cross multiply
    14,952x = 20,634.40 × 8,328
  4. Step 4: Simplify right side
    14,952x = 171,843,283.20
  5. Step 5: Solve for x
    x = 171,843,283.20/14,952
  6. Step 6: Final answer
    x = 11,493.00

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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.