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Finding the Fourth Proportional to 2,058.48, 3,085.02 and 887.13

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Solution

The fourth proportional to 2,058.48, 3,085.02 and 887.13 is: 1,329.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,058.48 : 3,085.02 = 887.13 : x
  2. Step 2: Convert to fraction form
    2,058.48/3,085.02 = 887.13/x
  3. Step 3: Cross multiply
    2,058.48x = 3,085.02 × 887.13
  4. Step 4: Simplify right side
    2,058.48x = 2,736,813.79
  5. Step 5: Solve for x
    x = 2,736,813.79/2,058.48
  6. Step 6: Final answer
    x = 1,329.53

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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.