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Finding the Fourth Proportional to 5,642.03, 8,461.67 and 2,355.15

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Solution

The fourth proportional to 5,642.03, 8,461.67 and 2,355.15 is: 3,532.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,642.03 : 8,461.67 = 2,355.15 : x
  2. Step 2: Convert to fraction form
    5,642.03/8,461.67 = 2,355.15/x
  3. Step 3: Cross multiply
    5,642.03x = 8,461.67 × 2,355.15
  4. Step 4: Simplify right side
    5,642.03x = 19,928,502.10
  5. Step 5: Solve for x
    x = 19,928,502.10/5,642.03
  6. Step 6: Final answer
    x = 3,532.15

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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.