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Finding the Fourth Proportional to 11,719.17, 17,578.71 and 4,702.32

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Solution

The fourth proportional to 11,719.17, 17,578.71 and 4,702.32 is: 7,053.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,719.17 : 17,578.71 = 4,702.32 : x
  2. Step 2: Convert to fraction form
    11,719.17/17,578.71 = 4,702.32/x
  3. Step 3: Cross multiply
    11,719.17x = 17,578.71 × 4,702.32
  4. Step 4: Simplify right side
    11,719.17x = 82,660,719.61
  5. Step 5: Solve for x
    x = 82,660,719.61/11,719.17
  6. Step 6: Final answer
    x = 7,053.46

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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.