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Finding the Fourth Proportional to 30,867.08, 46,302.62 and 12,399.08

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Solution

The fourth proportional to 30,867.08, 46,302.62 and 12,399.08 is: 18,599.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,867.08 : 46,302.62 = 12,399.08 : x
  2. Step 2: Convert to fraction form
    30,867.08/46,302.62 = 12,399.08/x
  3. Step 3: Cross multiply
    30,867.08x = 46,302.62 × 12,399.08
  4. Step 4: Simplify right side
    30,867.08x = 574,109,889.59
  5. Step 5: Solve for x
    x = 574,109,889.59/30,867.08
  6. Step 6: Final answer
    x = 18,599.42

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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.