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Finding the Fourth Proportional to 11,615.68, 17,423.52 and 5,041.72

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Solution

The fourth proportional to 11,615.68, 17,423.52 and 5,041.72 is: 7,562.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,615.68 : 17,423.52 = 5,041.72 : x
  2. Step 2: Convert to fraction form
    11,615.68/17,423.52 = 5,041.72/x
  3. Step 3: Cross multiply
    11,615.68x = 17,423.52 × 5,041.72
  4. Step 4: Simplify right side
    11,615.68x = 87,844,509.25
  5. Step 5: Solve for x
    x = 87,844,509.25/11,615.68
  6. Step 6: Final answer
    x = 7,562.58

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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.