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Finding the Fourth Proportional to 50,870.53, 70,209.53 and 29,645.70

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Solution

The fourth proportional to 50,870.53, 70,209.53 and 29,645.70 is: 40,915.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,870.53 : 70,209.53 = 29,645.70 : x
  2. Step 2: Convert to fraction form
    50,870.53/70,209.53 = 29,645.70/x
  3. Step 3: Cross multiply
    50,870.53x = 70,209.53 × 29,645.70
  4. Step 4: Simplify right side
    50,870.53x = 2,081,410,529.94
  5. Step 5: Solve for x
    x = 2,081,410,529.94/50,870.53
  6. Step 6: Final answer
    x = 40,915.84

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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.