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Finding the Fourth Proportional to 8,901.56, 13,354.16 and 2,661.32

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Solution

The fourth proportional to 8,901.56, 13,354.16 and 2,661.32 is: 3,992.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,901.56 : 13,354.16 = 2,661.32 : x
  2. Step 2: Convert to fraction form
    8,901.56/13,354.16 = 2,661.32/x
  3. Step 3: Cross multiply
    8,901.56x = 13,354.16 × 2,661.32
  4. Step 4: Simplify right side
    8,901.56x = 35,539,693.09
  5. Step 5: Solve for x
    x = 35,539,693.09/8,901.56
  6. Step 6: Final answer
    x = 3,992.52

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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.