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Finding the Fourth Proportional to 20,044.54, 30,068.53 and 5,253.45

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Solution

The fourth proportional to 20,044.54, 30,068.53 and 5,253.45 is: 7,880.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,044.54 : 30,068.53 = 5,253.45 : x
  2. Step 2: Convert to fraction form
    20,044.54/30,068.53 = 5,253.45/x
  3. Step 3: Cross multiply
    20,044.54x = 30,068.53 × 5,253.45
  4. Step 4: Simplify right side
    20,044.54x = 157,963,518.93
  5. Step 5: Solve for x
    x = 157,963,518.93/20,044.54
  6. Step 6: Final answer
    x = 7,880.63

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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.