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Finding the Fourth Proportional to 58,357.70, 80,364.13 and 50,697.47

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Solution

The fourth proportional to 58,357.70, 80,364.13 and 50,697.47 is: 69,815.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,357.70 : 80,364.13 = 50,697.47 : x
  2. Step 2: Convert to fraction form
    58,357.70/80,364.13 = 50,697.47/x
  3. Step 3: Cross multiply
    58,357.70x = 80,364.13 × 50,697.47
  4. Step 4: Simplify right side
    58,357.70x = 4,074,258,143.92
  5. Step 5: Solve for x
    x = 4,074,258,143.92/58,357.70
  6. Step 6: Final answer
    x = 69,815.27

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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.