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Finding the Fourth Proportional to 10,615.59, 15,923.39 and 4,765.37

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Solution

The fourth proportional to 10,615.59, 15,923.39 and 4,765.37 is: 7,148.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,615.59 : 15,923.39 = 4,765.37 : x
  2. Step 2: Convert to fraction form
    10,615.59/15,923.39 = 4,765.37/x
  3. Step 3: Cross multiply
    10,615.59x = 15,923.39 × 4,765.37
  4. Step 4: Simplify right side
    10,615.59x = 75,880,741.56
  5. Step 5: Solve for x
    x = 75,880,741.56/10,615.59
  6. Step 6: Final answer
    x = 7,148.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.