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Finding the Fourth Proportional to 50,957.60, 70,319.13 and 28,298.04

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Solution

The fourth proportional to 50,957.60, 70,319.13 and 28,298.04 is: 39,049.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,957.60 : 70,319.13 = 28,298.04 : x
  2. Step 2: Convert to fraction form
    50,957.60/70,319.13 = 28,298.04/x
  3. Step 3: Cross multiply
    50,957.60x = 70,319.13 × 28,298.04
  4. Step 4: Simplify right side
    50,957.60x = 1,989,893,553.51
  5. Step 5: Solve for x
    x = 1,989,893,553.51/50,957.60
  6. Step 6: Final answer
    x = 39,049.99

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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.