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Finding the Fourth Proportional to 16,001.95, 24,004.20 and 4,315

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Solution

The fourth proportional to 16,001.95, 24,004.20 and 4,315 is: 6,472.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,001.95 : 24,004.20 = 4,315 : x
  2. Step 2: Convert to fraction form
    16,001.95/24,004.20 = 4,315/x
  3. Step 3: Cross multiply
    16,001.95x = 24,004.20 × 4,315
  4. Step 4: Simplify right side
    16,001.95x = 103,578,123
  5. Step 5: Solve for x
    x = 103,578,123/16,001.95
  6. Step 6: Final answer
    x = 6,472.84

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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.