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Finding the Fourth Proportional to 2,588.74, 3,572.47 and 1,540.84

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Solution

The fourth proportional to 2,588.74, 3,572.47 and 1,540.84 is: 2,126.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,588.74 : 3,572.47 = 1,540.84 : x
  2. Step 2: Convert to fraction form
    2,588.74/3,572.47 = 1,540.84/x
  3. Step 3: Cross multiply
    2,588.74x = 3,572.47 × 1,540.84
  4. Step 4: Simplify right side
    2,588.74x = 5,504,586.81
  5. Step 5: Solve for x
    x = 5,504,586.81/2,588.74
  6. Step 6: Final answer
    x = 2,126.36

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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.