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Finding the Fourth Proportional to 11,655.83, 17,483.42 and 2,890.64

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Solution

The fourth proportional to 11,655.83, 17,483.42 and 2,890.64 is: 4,335.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,655.83 : 17,483.42 = 2,890.64 : x
  2. Step 2: Convert to fraction form
    11,655.83/17,483.42 = 2,890.64/x
  3. Step 3: Cross multiply
    11,655.83x = 17,483.42 × 2,890.64
  4. Step 4: Simplify right side
    11,655.83x = 50,538,193.00
  5. Step 5: Solve for x
    x = 50,538,193.00/11,655.83
  6. Step 6: Final answer
    x = 4,335.87

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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.