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Finding the Fourth Proportional to 50,700.94, 69,961.16 and 28,036.88

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Solution

The fourth proportional to 50,700.94, 69,961.16 and 28,036.88 is: 38,687.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,700.94 : 69,961.16 = 28,036.88 : x
  2. Step 2: Convert to fraction form
    50,700.94/69,961.16 = 28,036.88/x
  3. Step 3: Cross multiply
    50,700.94x = 69,961.16 × 28,036.88
  4. Step 4: Simplify right side
    50,700.94x = 1,961,492,647.58
  5. Step 5: Solve for x
    x = 1,961,492,647.58/50,700.94
  6. Step 6: Final answer
    x = 38,687.50

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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.