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Finding the Fourth Proportional to 29,671.10, 40,947.08 and 16,243.32

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Solution

The fourth proportional to 29,671.10, 40,947.08 and 16,243.32 is: 22,416.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,671.10 : 40,947.08 = 16,243.32 : x
  2. Step 2: Convert to fraction form
    29,671.10/40,947.08 = 16,243.32/x
  3. Step 3: Cross multiply
    29,671.10x = 40,947.08 × 16,243.32
  4. Step 4: Simplify right side
    29,671.10x = 665,116,442.29
  5. Step 5: Solve for x
    x = 665,116,442.29/29,671.10
  6. Step 6: Final answer
    x = 22,416.31

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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.