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Finding the Fourth Proportional to 10,957.92, 16,425.08 and 4,720.87

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Solution

The fourth proportional to 10,957.92, 16,425.08 and 4,720.87 is: 7,076.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,957.92 : 16,425.08 = 4,720.87 : x
  2. Step 2: Convert to fraction form
    10,957.92/16,425.08 = 4,720.87/x
  3. Step 3: Cross multiply
    10,957.92x = 16,425.08 × 4,720.87
  4. Step 4: Simplify right side
    10,957.92x = 77,540,602.94
  5. Step 5: Solve for x
    x = 77,540,602.94/10,957.92
  6. Step 6: Final answer
    x = 7,076.22

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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.