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Finding the Fourth Proportional to 11,089.47, 15,303.47 and 7,558.85

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Solution

The fourth proportional to 11,089.47, 15,303.47 and 7,558.85 is: 10,431.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,089.47 : 15,303.47 = 7,558.85 : x
  2. Step 2: Convert to fraction form
    11,089.47/15,303.47 = 7,558.85/x
  3. Step 3: Cross multiply
    11,089.47x = 15,303.47 × 7,558.85
  4. Step 4: Simplify right side
    11,089.47x = 115,676,634.21
  5. Step 5: Solve for x
    x = 115,676,634.21/11,089.47
  6. Step 6: Final answer
    x = 10,431.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.