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Finding the Fourth Proportional to 11,658.78, 17,482.23 and 4,261.32

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Solution

The fourth proportional to 11,658.78, 17,482.23 and 4,261.32 is: 6,389.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,658.78 : 17,482.23 = 4,261.32 : x
  2. Step 2: Convert to fraction form
    11,658.78/17,482.23 = 4,261.32/x
  3. Step 3: Cross multiply
    11,658.78x = 17,482.23 × 4,261.32
  4. Step 4: Simplify right side
    11,658.78x = 74,497,376.34
  5. Step 5: Solve for x
    x = 74,497,376.34/11,658.78
  6. Step 6: Final answer
    x = 6,389.81

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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.