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Finding the Fourth Proportional to 4,893.84, 6,750.68 and 3,123.45

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Solution

The fourth proportional to 4,893.84, 6,750.68 and 3,123.45 is: 4,308.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,893.84 : 6,750.68 = 3,123.45 : x
  2. Step 2: Convert to fraction form
    4,893.84/6,750.68 = 3,123.45/x
  3. Step 3: Cross multiply
    4,893.84x = 6,750.68 × 3,123.45
  4. Step 4: Simplify right side
    4,893.84x = 21,085,395.83
  5. Step 5: Solve for x
    x = 21,085,395.83/4,893.84
  6. Step 6: Final answer
    x = 4,308.56

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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.