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Finding the Fourth Proportional to 4,883.88, 6,740.10 and 2,788.32

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Solution

The fourth proportional to 4,883.88, 6,740.10 and 2,788.32 is: 3,848.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,883.88 : 6,740.10 = 2,788.32 : x
  2. Step 2: Convert to fraction form
    4,883.88/6,740.10 = 2,788.32/x
  3. Step 3: Cross multiply
    4,883.88x = 6,740.10 × 2,788.32
  4. Step 4: Simplify right side
    4,883.88x = 18,793,555.63
  5. Step 5: Solve for x
    x = 18,793,555.63/4,883.88
  6. Step 6: Final answer
    x = 3,848.08

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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.