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Finding the Fourth Proportional to 4,686.60, 7,028.10 and 1,763.32

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Solution

The fourth proportional to 4,686.60, 7,028.10 and 1,763.32 is: 2,644.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,686.60 : 7,028.10 = 1,763.32 : x
  2. Step 2: Convert to fraction form
    4,686.60/7,028.10 = 1,763.32/x
  3. Step 3: Cross multiply
    4,686.60x = 7,028.10 × 1,763.32
  4. Step 4: Simplify right side
    4,686.60x = 12,392,789.29
  5. Step 5: Solve for x
    x = 12,392,789.29/4,686.60
  6. Step 6: Final answer
    x = 2,644.30

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1.5x scale

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.