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Finding the Fourth Proportional to 29,436.95, 40,622.07 and 16,691.28

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Solution

The fourth proportional to 29,436.95, 40,622.07 and 16,691.28 is: 23,033.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,436.95 : 40,622.07 = 16,691.28 : x
  2. Step 2: Convert to fraction form
    29,436.95/40,622.07 = 16,691.28/x
  3. Step 3: Cross multiply
    29,436.95x = 40,622.07 × 16,691.28
  4. Step 4: Simplify right side
    29,436.95x = 678,034,344.55
  5. Step 5: Solve for x
    x = 678,034,344.55/29,436.95
  6. Step 6: Final answer
    x = 23,033.45

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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.