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Finding the Fourth Proportional to 5,858.95, 8,085.47 and 3,206.41

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Solution

The fourth proportional to 5,858.95, 8,085.47 and 3,206.41 is: 4,424.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,858.95 : 8,085.47 = 3,206.41 : x
  2. Step 2: Convert to fraction form
    5,858.95/8,085.47 = 3,206.41/x
  3. Step 3: Cross multiply
    5,858.95x = 8,085.47 × 3,206.41
  4. Step 4: Simplify right side
    5,858.95x = 25,925,331.86
  5. Step 5: Solve for x
    x = 25,925,331.86/5,858.95
  6. Step 6: Final answer
    x = 4,424.91

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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.