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Finding the Fourth Proportional to 7,751.82, 10,697.76 and 4,395.18

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Solution

The fourth proportional to 7,751.82, 10,697.76 and 4,395.18 is: 6,065.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,751.82 : 10,697.76 = 4,395.18 : x
  2. Step 2: Convert to fraction form
    7,751.82/10,697.76 = 4,395.18/x
  3. Step 3: Cross multiply
    7,751.82x = 10,697.76 × 4,395.18
  4. Step 4: Simplify right side
    7,751.82x = 47,018,580.80
  5. Step 5: Solve for x
    x = 47,018,580.80/7,751.82
  6. Step 6: Final answer
    x = 6,065.49

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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.