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Finding the Fourth Proportional to 52,643.20, 72,612 and 33,803.20

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Solution

The fourth proportional to 52,643.20, 72,612 and 33,803.20 is: 46,625.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,643.20 : 72,612 = 33,803.20 : x
  2. Step 2: Convert to fraction form
    52,643.20/72,612 = 33,803.20/x
  3. Step 3: Cross multiply
    52,643.20x = 72,612 × 33,803.20
  4. Step 4: Simplify right side
    52,643.20x = 2,454,517,958.40
  5. Step 5: Solve for x
    x = 2,454,517,958.40/52,643.20
  6. Step 6: Final answer
    x = 46,625.55

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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.