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Finding the Fourth Proportional to 5,391.84, 7,441.54 and 5,058.30

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Solution

The fourth proportional to 5,391.84, 7,441.54 and 5,058.30 is: 6,981.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391.84 : 7,441.54 = 5,058.30 : x
  2. Step 2: Convert to fraction form
    5,391.84/7,441.54 = 5,058.30/x
  3. Step 3: Cross multiply
    5,391.84x = 7,441.54 × 5,058.30
  4. Step 4: Simplify right side
    5,391.84x = 37,641,541.78
  5. Step 5: Solve for x
    x = 37,641,541.78/5,391.84
  6. Step 6: Final answer
    x = 6,981.21

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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.