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Finding the Fourth Proportional to 8,600.95, 12,901.70 and 3,054.21

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Solution

The fourth proportional to 8,600.95, 12,901.70 and 3,054.21 is: 4,581.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,600.95 : 12,901.70 = 3,054.21 : x
  2. Step 2: Convert to fraction form
    8,600.95/12,901.70 = 3,054.21/x
  3. Step 3: Cross multiply
    8,600.95x = 12,901.70 × 3,054.21
  4. Step 4: Simplify right side
    8,600.95x = 39,404,501.16
  5. Step 5: Solve for x
    x = 39,404,501.16/8,600.95
  6. Step 6: Final answer
    x = 4,581.41

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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.