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Finding the Fourth Proportional to 4,602.90, 6,899.59 and 2,135.71

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Solution

The fourth proportional to 4,602.90, 6,899.59 and 2,135.71 is: 3,201.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,602.90 : 6,899.59 = 2,135.71 : x
  2. Step 2: Convert to fraction form
    4,602.90/6,899.59 = 2,135.71/x
  3. Step 3: Cross multiply
    4,602.90x = 6,899.59 × 2,135.71
  4. Step 4: Simplify right side
    4,602.90x = 14,735,523.36
  5. Step 5: Solve for x
    x = 14,735,523.36/4,602.90
  6. Step 6: Final answer
    x = 3,201.36

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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.