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Finding the Fourth Proportional to 30,869.08, 46,305.62 and 12,401.08

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Solution

The fourth proportional to 30,869.08, 46,305.62 and 12,401.08 is: 18,602.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,869.08 : 46,305.62 = 12,401.08 : x
  2. Step 2: Convert to fraction form
    30,869.08/46,305.62 = 12,401.08/x
  3. Step 3: Cross multiply
    30,869.08x = 46,305.62 × 12,401.08
  4. Step 4: Simplify right side
    30,869.08x = 574,239,698.07
  5. Step 5: Solve for x
    x = 574,239,698.07/30,869.08
  6. Step 6: Final answer
    x = 18,602.42

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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.