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Finding the Fourth Proportional to 11,365.32, 17,045.74 and 5,821.64

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Solution

The fourth proportional to 11,365.32, 17,045.74 and 5,821.64 is: 8,731.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,365.32 : 17,045.74 = 5,821.64 : x
  2. Step 2: Convert to fraction form
    11,365.32/17,045.74 = 5,821.64/x
  3. Step 3: Cross multiply
    11,365.32x = 17,045.74 × 5,821.64
  4. Step 4: Simplify right side
    11,365.32x = 99,234,161.81
  5. Step 5: Solve for x
    x = 99,234,161.81/11,365.32
  6. Step 6: Final answer
    x = 8,731.31

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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.