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Finding the Fourth Proportional to 11,881.52, 17,826.48 and 5,307.12

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Solution

The fourth proportional to 11,881.52, 17,826.48 and 5,307.12 is: 7,962.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,881.52 : 17,826.48 = 5,307.12 : x
  2. Step 2: Convert to fraction form
    11,881.52/17,826.48 = 5,307.12/x
  3. Step 3: Cross multiply
    11,881.52x = 17,826.48 × 5,307.12
  4. Step 4: Simplify right side
    11,881.52x = 94,607,268.54
  5. Step 5: Solve for x
    x = 94,607,268.54/11,881.52
  6. Step 6: Final answer
    x = 7,962.56

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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.