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Finding the Fourth Proportional to 57,831.84, 79,817.18 and 33,953.90

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Solution

The fourth proportional to 57,831.84, 79,817.18 and 33,953.90 is: 46,861.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,831.84 : 79,817.18 = 33,953.90 : x
  2. Step 2: Convert to fraction form
    57,831.84/79,817.18 = 33,953.90/x
  3. Step 3: Cross multiply
    57,831.84x = 79,817.18 × 33,953.90
  4. Step 4: Simplify right side
    57,831.84x = 2,710,103,979.15
  5. Step 5: Solve for x
    x = 2,710,103,979.15/57,831.84
  6. Step 6: Final answer
    x = 46,861.80

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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.