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Finding the Fourth Proportional to 5,328.47, 7,982.26 and 4,392.76

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Solution

The fourth proportional to 5,328.47, 7,982.26 and 4,392.76 is: 6,580.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,328.47 : 7,982.26 = 4,392.76 : x
  2. Step 2: Convert to fraction form
    5,328.47/7,982.26 = 4,392.76/x
  3. Step 3: Cross multiply
    5,328.47x = 7,982.26 × 4,392.76
  4. Step 4: Simplify right side
    5,328.47x = 35,064,112.53
  5. Step 5: Solve for x
    x = 35,064,112.53/5,328.47
  6. Step 6: Final answer
    x = 6,580.52

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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.