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Finding the Fourth Proportional to 28,497.84, 42,756.48 and 15,351.54

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Solution

The fourth proportional to 28,497.84, 42,756.48 and 15,351.54 is: 23,032.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,497.84 : 42,756.48 = 15,351.54 : x
  2. Step 2: Convert to fraction form
    28,497.84/42,756.48 = 15,351.54/x
  3. Step 3: Cross multiply
    28,497.84x = 42,756.48 × 15,351.54
  4. Step 4: Simplify right side
    28,497.84x = 656,377,812.98
  5. Step 5: Solve for x
    x = 656,377,812.98/28,497.84
  6. Step 6: Final answer
    x = 23,032.55

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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.