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Finding the Fourth Proportional to 15,212.60, 22,818.90 and 14,629.40

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Solution

The fourth proportional to 15,212.60, 22,818.90 and 14,629.40 is: 21,944.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,212.60 : 22,818.90 = 14,629.40 : x
  2. Step 2: Convert to fraction form
    15,212.60/22,818.90 = 14,629.40/x
  3. Step 3: Cross multiply
    15,212.60x = 22,818.90 × 14,629.40
  4. Step 4: Simplify right side
    15,212.60x = 333,826,815.66
  5. Step 5: Solve for x
    x = 333,826,815.66/15,212.60
  6. Step 6: Final answer
    x = 21,944.10

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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.