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Finding the Fourth Proportional to 2,602.99, 3,592.12 and 1,424.06

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Solution

The fourth proportional to 2,602.99, 3,592.12 and 1,424.06 is: 1,965.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,602.99 : 3,592.12 = 1,424.06 : x
  2. Step 2: Convert to fraction form
    2,602.99/3,592.12 = 1,424.06/x
  3. Step 3: Cross multiply
    2,602.99x = 3,592.12 × 1,424.06
  4. Step 4: Simplify right side
    2,602.99x = 5,115,394.41
  5. Step 5: Solve for x
    x = 5,115,394.41/2,602.99
  6. Step 6: Final answer
    x = 1,965.20

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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.