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Finding the Fourth Proportional to 15,228.45, 22,854.86 and 14,742.45

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Solution

The fourth proportional to 15,228.45, 22,854.86 and 14,742.45 is: 22,125.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,228.45 : 22,854.86 = 14,742.45 : x
  2. Step 2: Convert to fraction form
    15,228.45/22,854.86 = 14,742.45/x
  3. Step 3: Cross multiply
    15,228.45x = 22,854.86 × 14,742.45
  4. Step 4: Simplify right side
    15,228.45x = 336,936,557.09
  5. Step 5: Solve for x
    x = 336,936,557.09/15,228.45
  6. Step 6: Final answer
    x = 22,125.47

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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.