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Finding the Fourth Proportional to 7,347.68, 10,138.72 and 4,363.64

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Solution

The fourth proportional to 7,347.68, 10,138.72 and 4,363.64 is: 6,021.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,347.68 : 10,138.72 = 4,363.64 : x
  2. Step 2: Convert to fraction form
    7,347.68/10,138.72 = 4,363.64/x
  3. Step 3: Cross multiply
    7,347.68x = 10,138.72 × 4,363.64
  4. Step 4: Simplify right side
    7,347.68x = 44,241,724.14
  5. Step 5: Solve for x
    x = 44,241,724.14/7,347.68
  6. Step 6: Final answer
    x = 6,021.18

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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.