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Finding the Fourth Proportional to 5,665.52, 7,799.01 and 4,915.06

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Solution

The fourth proportional to 5,665.52, 7,799.01 and 4,915.06 is: 6,765.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,665.52 : 7,799.01 = 4,915.06 : x
  2. Step 2: Convert to fraction form
    5,665.52/7,799.01 = 4,915.06/x
  3. Step 3: Cross multiply
    5,665.52x = 7,799.01 × 4,915.06
  4. Step 4: Simplify right side
    5,665.52x = 38,332,602.09
  5. Step 5: Solve for x
    x = 38,332,602.09/5,665.52
  6. Step 6: Final answer
    x = 6,765.95

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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.