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Finding the Fourth Proportional to 30,903.22, 46,356.68 and 8,718.49

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Solution

The fourth proportional to 30,903.22, 46,356.68 and 8,718.49 is: 13,078.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,903.22 : 46,356.68 = 8,718.49 : x
  2. Step 2: Convert to fraction form
    30,903.22/46,356.68 = 8,718.49/x
  3. Step 3: Cross multiply
    30,903.22x = 46,356.68 × 8,718.49
  4. Step 4: Simplify right side
    30,903.22x = 404,160,251.01
  5. Step 5: Solve for x
    x = 404,160,251.01/30,903.22
  6. Step 6: Final answer
    x = 13,078.26

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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.