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Finding the Fourth Proportional to 5,319.95, 7,324.79 and 4,827.87

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Solution

The fourth proportional to 5,319.95, 7,324.79 and 4,827.87 is: 6,647.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,319.95 : 7,324.79 = 4,827.87 : x
  2. Step 2: Convert to fraction form
    5,319.95/7,324.79 = 4,827.87/x
  3. Step 3: Cross multiply
    5,319.95x = 7,324.79 × 4,827.87
  4. Step 4: Simplify right side
    5,319.95x = 35,363,109.76
  5. Step 5: Solve for x
    x = 35,363,109.76/5,319.95
  6. Step 6: Final answer
    x = 6,647.27

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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.