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Finding the Fourth Proportional to 11,445.74, 17,154.74 and 4,858.09

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Solution

The fourth proportional to 11,445.74, 17,154.74 and 4,858.09 is: 7,281.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,445.74 : 17,154.74 = 4,858.09 : x
  2. Step 2: Convert to fraction form
    11,445.74/17,154.74 = 4,858.09/x
  3. Step 3: Cross multiply
    11,445.74x = 17,154.74 × 4,858.09
  4. Step 4: Simplify right side
    11,445.74x = 83,339,160.78
  5. Step 5: Solve for x
    x = 83,339,160.78/11,445.74
  6. Step 6: Final answer
    x = 7,281.24

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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.