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Finding the Fourth Proportional to 5,011.77, 6,921.50 and 3,425.74

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Solution

The fourth proportional to 5,011.77, 6,921.50 and 3,425.74 is: 4,731.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,011.77 : 6,921.50 = 3,425.74 : x
  2. Step 2: Convert to fraction form
    5,011.77/6,921.50 = 3,425.74/x
  3. Step 3: Cross multiply
    5,011.77x = 6,921.50 × 3,425.74
  4. Step 4: Simplify right side
    5,011.77x = 23,711,283.18
  5. Step 5: Solve for x
    x = 23,711,283.18/5,011.77
  6. Step 6: Final answer
    x = 4,731.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.