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Finding the Fourth Proportional to 21,048.02, 29,046.08 and 11,616.38

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Solution

The fourth proportional to 21,048.02, 29,046.08 and 11,616.38 is: 16,030.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,048.02 : 29,046.08 = 11,616.38 : x
  2. Step 2: Convert to fraction form
    21,048.02/29,046.08 = 11,616.38/x
  3. Step 3: Cross multiply
    21,048.02x = 29,046.08 × 11,616.38
  4. Step 4: Simplify right side
    21,048.02x = 337,410,099.48
  5. Step 5: Solve for x
    x = 337,410,099.48/21,048.02
  6. Step 6: Final answer
    x = 16,030.50

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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.