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Finding the Fourth Proportional to 50,871.53, 70,210.91 and 29,646.70

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Solution

The fourth proportional to 50,871.53, 70,210.91 and 29,646.70 is: 40,917.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,871.53 : 70,210.91 = 29,646.70 : x
  2. Step 2: Convert to fraction form
    50,871.53/70,210.91 = 29,646.70/x
  3. Step 3: Cross multiply
    50,871.53x = 70,210.91 × 29,646.70
  4. Step 4: Simplify right side
    50,871.53x = 2,081,521,785.50
  5. Step 5: Solve for x
    x = 2,081,521,785.50/50,871.53
  6. Step 6: Final answer
    x = 40,917.22

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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.