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Finding the Fourth Proportional to 30,869.70, 46,304.55 and 10,093.20

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Solution

The fourth proportional to 30,869.70, 46,304.55 and 10,093.20 is: 15,139.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,869.70 : 46,304.55 = 10,093.20 : x
  2. Step 2: Convert to fraction form
    30,869.70/46,304.55 = 10,093.20/x
  3. Step 3: Cross multiply
    30,869.70x = 46,304.55 × 10,093.20
  4. Step 4: Simplify right side
    30,869.70x = 467,361,084.06
  5. Step 5: Solve for x
    x = 467,361,084.06/30,869.70
  6. Step 6: Final answer
    x = 15,139.80

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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.