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Finding the Fourth Proportional to 11,036.72, 16,555.08 and 2,828.72

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Solution

The fourth proportional to 11,036.72, 16,555.08 and 2,828.72 is: 4,243.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,036.72 : 16,555.08 = 2,828.72 : x
  2. Step 2: Convert to fraction form
    11,036.72/16,555.08 = 2,828.72/x
  3. Step 3: Cross multiply
    11,036.72x = 16,555.08 × 2,828.72
  4. Step 4: Simplify right side
    11,036.72x = 46,829,603.12
  5. Step 5: Solve for x
    x = 46,829,603.12/11,036.72
  6. Step 6: Final answer
    x = 4,243.07

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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.