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Finding the Fourth Proportional to 3,862.72, 5,330.51 and 2,094.32

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Solution

The fourth proportional to 3,862.72, 5,330.51 and 2,094.32 is: 2,890.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,862.72 : 5,330.51 = 2,094.32 : x
  2. Step 2: Convert to fraction form
    3,862.72/5,330.51 = 2,094.32/x
  3. Step 3: Cross multiply
    3,862.72x = 5,330.51 × 2,094.32
  4. Step 4: Simplify right side
    3,862.72x = 11,163,804.41
  5. Step 5: Solve for x
    x = 11,163,804.41/3,862.72
  6. Step 6: Final answer
    x = 2,890.14

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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.