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Finding the Fourth Proportional to 8,558.16, 11,803.74 and 7,365.13

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Solution

The fourth proportional to 8,558.16, 11,803.74 and 7,365.13 is: 10,158.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,558.16 : 11,803.74 = 7,365.13 : x
  2. Step 2: Convert to fraction form
    8,558.16/11,803.74 = 7,365.13/x
  3. Step 3: Cross multiply
    8,558.16x = 11,803.74 × 7,365.13
  4. Step 4: Simplify right side
    8,558.16x = 86,936,022.46
  5. Step 5: Solve for x
    x = 86,936,022.46/8,558.16
  6. Step 6: Final answer
    x = 10,158.27

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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.