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Finding the Fourth Proportional to 8,058.12, 11,121.42 and 4,916.14

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Solution

The fourth proportional to 8,058.12, 11,121.42 and 4,916.14 is: 6,785.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,058.12 : 11,121.42 = 4,916.14 : x
  2. Step 2: Convert to fraction form
    8,058.12/11,121.42 = 4,916.14/x
  3. Step 3: Cross multiply
    8,058.12x = 11,121.42 × 4,916.14
  4. Step 4: Simplify right side
    8,058.12x = 54,674,457.72
  5. Step 5: Solve for x
    x = 54,674,457.72/8,058.12
  6. Step 6: Final answer
    x = 6,785.01

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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.