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Finding the Fourth Proportional to 11,187.52, 16,785.06 and 7,030.60

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Solution

The fourth proportional to 11,187.52, 16,785.06 and 7,030.60 is: 10,548.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.52 : 16,785.06 = 7,030.60 : x
  2. Step 2: Convert to fraction form
    11,187.52/16,785.06 = 7,030.60/x
  3. Step 3: Cross multiply
    11,187.52x = 16,785.06 × 7,030.60
  4. Step 4: Simplify right side
    11,187.52x = 118,009,042.84
  5. Step 5: Solve for x
    x = 118,009,042.84/11,187.52
  6. Step 6: Final answer
    x = 10,548.28

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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.