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Finding the Fourth Proportional to 52,436.70, 72,360.14 and 28,563.30

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Solution

The fourth proportional to 52,436.70, 72,360.14 and 28,563.30 is: 39,415.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,436.70 : 72,360.14 = 28,563.30 : x
  2. Step 2: Convert to fraction form
    52,436.70/72,360.14 = 28,563.30/x
  3. Step 3: Cross multiply
    52,436.70x = 72,360.14 × 28,563.30
  4. Step 4: Simplify right side
    52,436.70x = 2,066,844,244.05
  5. Step 5: Solve for x
    x = 2,066,844,244.05/52,436.70
  6. Step 6: Final answer
    x = 39,415.99

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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.