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Finding the Fourth Proportional to 18,357.12, 27,535.44 and 4,506

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Solution

The fourth proportional to 18,357.12, 27,535.44 and 4,506 is: 6,758.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,357.12 : 27,535.44 = 4,506 : x
  2. Step 2: Convert to fraction form
    18,357.12/27,535.44 = 4,506/x
  3. Step 3: Cross multiply
    18,357.12x = 27,535.44 × 4,506
  4. Step 4: Simplify right side
    18,357.12x = 124,074,692.64
  5. Step 5: Solve for x
    x = 124,074,692.64/18,357.12
  6. Step 6: Final answer
    x = 6,758.94

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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.