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Finding the Fourth Proportional to 50,875.01, 70,211.12 and 28,216.17

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Solution

The fourth proportional to 50,875.01, 70,211.12 and 28,216.17 is: 38,940.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,875.01 : 70,211.12 = 28,216.17 : x
  2. Step 2: Convert to fraction form
    50,875.01/70,211.12 = 28,216.17/x
  3. Step 3: Cross multiply
    50,875.01x = 70,211.12 × 28,216.17
  4. Step 4: Simplify right side
    50,875.01x = 1,981,088,756.73
  5. Step 5: Solve for x
    x = 1,981,088,756.73/50,875.01
  6. Step 6: Final answer
    x = 38,940.32

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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.