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Finding the Fourth Proportional to 5,597.32, 7,721.40 and 3,358.12

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Solution

The fourth proportional to 5,597.32, 7,721.40 and 3,358.12 is: 4,632.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,597.32 : 7,721.40 = 3,358.12 : x
  2. Step 2: Convert to fraction form
    5,597.32/7,721.40 = 3,358.12/x
  3. Step 3: Cross multiply
    5,597.32x = 7,721.40 × 3,358.12
  4. Step 4: Simplify right side
    5,597.32x = 25,929,387.77
  5. Step 5: Solve for x
    x = 25,929,387.77/5,597.32
  6. Step 6: Final answer
    x = 4,632.46

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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.