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Finding the Fourth Proportional to 18,368.10, 27,552.15 and 11,807.10

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Solution

The fourth proportional to 18,368.10, 27,552.15 and 11,807.10 is: 17,710.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,368.10 : 27,552.15 = 11,807.10 : x
  2. Step 2: Convert to fraction form
    18,368.10/27,552.15 = 11,807.10/x
  3. Step 3: Cross multiply
    18,368.10x = 27,552.15 × 11,807.10
  4. Step 4: Simplify right side
    18,368.10x = 325,310,990.27
  5. Step 5: Solve for x
    x = 325,310,990.27/18,368.10
  6. Step 6: Final answer
    x = 17,710.65

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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.