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Finding the Fourth Proportional to 19,372.36, 29,058.54 and 5,521

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Solution

The fourth proportional to 19,372.36, 29,058.54 and 5,521 is: 8,281.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,372.36 : 29,058.54 = 5,521 : x
  2. Step 2: Convert to fraction form
    19,372.36/29,058.54 = 5,521/x
  3. Step 3: Cross multiply
    19,372.36x = 29,058.54 × 5,521
  4. Step 4: Simplify right side
    19,372.36x = 160,432,199.34
  5. Step 5: Solve for x
    x = 160,432,199.34/19,372.36
  6. Step 6: Final answer
    x = 8,281.50

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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.