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Finding the Fourth Proportional to 18,368.10, 27,515.70 and 10,035.90

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Solution

The fourth proportional to 18,368.10, 27,515.70 and 10,035.90 is: 15,033.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,368.10 : 27,515.70 = 10,035.90 : x
  2. Step 2: Convert to fraction form
    18,368.10/27,515.70 = 10,035.90/x
  3. Step 3: Cross multiply
    18,368.10x = 27,515.70 × 10,035.90
  4. Step 4: Simplify right side
    18,368.10x = 276,144,813.63
  5. Step 5: Solve for x
    x = 276,144,813.63/18,368.10
  6. Step 6: Final answer
    x = 15,033.93

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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.