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Finding the Fourth Proportional to 56,836, 85,255.62 and 15,283

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Solution

The fourth proportional to 56,836, 85,255.62 and 15,283 is: 22,924.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,836 : 85,255.62 = 15,283 : x
  2. Step 2: Convert to fraction form
    56,836/85,255.62 = 15,283/x
  3. Step 3: Cross multiply
    56,836x = 85,255.62 × 15,283
  4. Step 4: Simplify right side
    56,836x = 1,302,961,640.46
  5. Step 5: Solve for x
    x = 1,302,961,640.46/56,836
  6. Step 6: Final answer
    x = 22,924.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.