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Finding the Fourth Proportional to 18,291.68, 27,437.52 and 7,355.36

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Solution

The fourth proportional to 18,291.68, 27,437.52 and 7,355.36 is: 11,033.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,291.68 : 27,437.52 = 7,355.36 : x
  2. Step 2: Convert to fraction form
    18,291.68/27,437.52 = 7,355.36/x
  3. Step 3: Cross multiply
    18,291.68x = 27,437.52 × 7,355.36
  4. Step 4: Simplify right side
    18,291.68x = 201,812,837.11
  5. Step 5: Solve for x
    x = 201,812,837.11/18,291.68
  6. Step 6: Final answer
    x = 11,033.04

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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.