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Finding the Fourth Proportional to 29,436.64, 40,622 and 16,188.64

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Solution

The fourth proportional to 29,436.64, 40,622 and 16,188.64 is: 22,340.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,436.64 : 40,622 = 16,188.64 : x
  2. Step 2: Convert to fraction form
    29,436.64/40,622 = 16,188.64/x
  3. Step 3: Cross multiply
    29,436.64x = 40,622 × 16,188.64
  4. Step 4: Simplify right side
    29,436.64x = 657,614,934.08
  5. Step 5: Solve for x
    x = 657,614,934.08/29,436.64
  6. Step 6: Final answer
    x = 22,340.01

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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.