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Finding the Fourth Proportional to 11,065.68, 15,270.48 and 6,349.68

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Solution

The fourth proportional to 11,065.68, 15,270.48 and 6,349.68 is: 8,762.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,065.68 : 15,270.48 = 6,349.68 : x
  2. Step 2: Convert to fraction form
    11,065.68/15,270.48 = 6,349.68/x
  3. Step 3: Cross multiply
    11,065.68x = 15,270.48 × 6,349.68
  4. Step 4: Simplify right side
    11,065.68x = 96,962,661.45
  5. Step 5: Solve for x
    x = 96,962,661.45/11,065.68
  6. Step 6: Final answer
    x = 8,762.47

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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.