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Finding the Fourth Proportional to 8,751.54, 12,074.95 and 5,347.67

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Solution

The fourth proportional to 8,751.54, 12,074.95 and 5,347.67 is: 7,378.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,751.54 : 12,074.95 = 5,347.67 : x
  2. Step 2: Convert to fraction form
    8,751.54/12,074.95 = 5,347.67/x
  3. Step 3: Cross multiply
    8,751.54x = 12,074.95 × 5,347.67
  4. Step 4: Simplify right side
    8,751.54x = 64,572,847.87
  5. Step 5: Solve for x
    x = 64,572,847.87/8,751.54
  6. Step 6: Final answer
    x = 7,378.46

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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.