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Finding the Fourth Proportional to 50,702.80, 75,980.25 and 28,522.39

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Solution

The fourth proportional to 50,702.80, 75,980.25 and 28,522.39 is: 42,741.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,702.80 : 75,980.25 = 28,522.39 : x
  2. Step 2: Convert to fraction form
    50,702.80/75,980.25 = 28,522.39/x
  3. Step 3: Cross multiply
    50,702.80x = 75,980.25 × 28,522.39
  4. Step 4: Simplify right side
    50,702.80x = 2,167,138,322.80
  5. Step 5: Solve for x
    x = 2,167,138,322.80/50,702.80
  6. Step 6: Final answer
    x = 42,741.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.