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Finding the Fourth Proportional to 7,772.54, 10,725.80 and 4,235.54

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Solution

The fourth proportional to 7,772.54, 10,725.80 and 4,235.54 is: 5,844.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,772.54 : 10,725.80 = 4,235.54 : x
  2. Step 2: Convert to fraction form
    7,772.54/10,725.80 = 4,235.54/x
  3. Step 3: Cross multiply
    7,772.54x = 10,725.80 × 4,235.54
  4. Step 4: Simplify right side
    7,772.54x = 45,429,554.93
  5. Step 5: Solve for x
    x = 45,429,554.93/7,772.54
  6. Step 6: Final answer
    x = 5,844.88

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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.