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Finding the Fourth Proportional to 29,672.98, 40,948.80 and 16,244.40

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Solution

The fourth proportional to 29,672.98, 40,948.80 and 16,244.40 is: 22,417.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,672.98 : 40,948.80 = 16,244.40 : x
  2. Step 2: Convert to fraction form
    29,672.98/40,948.80 = 16,244.40/x
  3. Step 3: Cross multiply
    29,672.98x = 40,948.80 × 16,244.40
  4. Step 4: Simplify right side
    29,672.98x = 665,188,686.72
  5. Step 5: Solve for x
    x = 665,188,686.72/29,672.98
  6. Step 6: Final answer
    x = 22,417.32

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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.