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Finding the Fourth Proportional to 13,754.66, 18,962.03 and 9,774.32

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Solution

The fourth proportional to 13,754.66, 18,962.03 and 9,774.32 is: 13,474.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,754.66 : 18,962.03 = 9,774.32 : x
  2. Step 2: Convert to fraction form
    13,754.66/18,962.03 = 9,774.32/x
  3. Step 3: Cross multiply
    13,754.66x = 18,962.03 × 9,774.32
  4. Step 4: Simplify right side
    13,754.66x = 185,340,878.70
  5. Step 5: Solve for x
    x = 185,340,878.70/13,754.66
  6. Step 6: Final answer
    x = 13,474.77

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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.