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Finding the Fourth Proportional to 16,615.99, 22,933.02 and 9,905.50

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Solution

The fourth proportional to 16,615.99, 22,933.02 and 9,905.50 is: 13,671.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,615.99 : 22,933.02 = 9,905.50 : x
  2. Step 2: Convert to fraction form
    16,615.99/22,933.02 = 9,905.50/x
  3. Step 3: Cross multiply
    16,615.99x = 22,933.02 × 9,905.50
  4. Step 4: Simplify right side
    16,615.99x = 227,163,029.61
  5. Step 5: Solve for x
    x = 227,163,029.61/16,615.99
  6. Step 6: Final answer
    x = 13,671.35

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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.