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Finding the Fourth Proportional to 18,281.44, 27,416.59 and 9,511.57

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Solution

The fourth proportional to 18,281.44, 27,416.59 and 9,511.57 is: 14,264.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,281.44 : 27,416.59 = 9,511.57 : x
  2. Step 2: Convert to fraction form
    18,281.44/27,416.59 = 9,511.57/x
  3. Step 3: Cross multiply
    18,281.44x = 27,416.59 × 9,511.57
  4. Step 4: Simplify right side
    18,281.44x = 260,774,710.74
  5. Step 5: Solve for x
    x = 260,774,710.74/18,281.44
  6. Step 6: Final answer
    x = 14,264.45

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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.