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Finding the Fourth Proportional to 50,855.64, 70,160.76 and 31,724.28

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Solution

The fourth proportional to 50,855.64, 70,160.76 and 31,724.28 is: 43,767.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,855.64 : 70,160.76 = 31,724.28 : x
  2. Step 2: Convert to fraction form
    50,855.64/70,160.76 = 31,724.28/x
  3. Step 3: Cross multiply
    50,855.64x = 70,160.76 × 31,724.28
  4. Step 4: Simplify right side
    50,855.64x = 2,225,799,595.25
  5. Step 5: Solve for x
    x = 2,225,799,595.25/50,855.64
  6. Step 6: Final answer
    x = 43,767.02

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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.