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Finding the Fourth Proportional to 2,525.76, 3,483.11 and 1,686.51

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Solution

The fourth proportional to 2,525.76, 3,483.11 and 1,686.51 is: 2,325.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,525.76 : 3,483.11 = 1,686.51 : x
  2. Step 2: Convert to fraction form
    2,525.76/3,483.11 = 1,686.51/x
  3. Step 3: Cross multiply
    2,525.76x = 3,483.11 × 1,686.51
  4. Step 4: Simplify right side
    2,525.76x = 5,874,291.41
  5. Step 5: Solve for x
    x = 5,874,291.41/2,525.76
  6. Step 6: Final answer
    x = 2,325.75

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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.