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Finding the Fourth Proportional to 4,893.90, 6,753.90 and 4,672.50

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Solution

The fourth proportional to 4,893.90, 6,753.90 and 4,672.50 is: 6,448.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,893.90 : 6,753.90 = 4,672.50 : x
  2. Step 2: Convert to fraction form
    4,893.90/6,753.90 = 4,672.50/x
  3. Step 3: Cross multiply
    4,893.90x = 6,753.90 × 4,672.50
  4. Step 4: Simplify right side
    4,893.90x = 31,557,597.75
  5. Step 5: Solve for x
    x = 31,557,597.75/4,893.90
  6. Step 6: Final answer
    x = 6,448.35

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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.