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Finding the Fourth Proportional to 5,328.70, 7,356.76 and 4,737.60

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Solution

The fourth proportional to 5,328.70, 7,356.76 and 4,737.60 is: 6,540.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,328.70 : 7,356.76 = 4,737.60 : x
  2. Step 2: Convert to fraction form
    5,328.70/7,356.76 = 4,737.60/x
  3. Step 3: Cross multiply
    5,328.70x = 7,356.76 × 4,737.60
  4. Step 4: Simplify right side
    5,328.70x = 34,853,386.18
  5. Step 5: Solve for x
    x = 34,853,386.18/5,328.70
  6. Step 6: Final answer
    x = 6,540.69

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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.