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Finding the Fourth Proportional to 18,295.47, 27,435.43 and 5,812.16

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Solution

The fourth proportional to 18,295.47, 27,435.43 and 5,812.16 is: 8,715.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,295.47 : 27,435.43 = 5,812.16 : x
  2. Step 2: Convert to fraction form
    18,295.47/27,435.43 = 5,812.16/x
  3. Step 3: Cross multiply
    18,295.47x = 27,435.43 × 5,812.16
  4. Step 4: Simplify right side
    18,295.47x = 159,459,108.83
  5. Step 5: Solve for x
    x = 159,459,108.83/18,295.47
  6. Step 6: Final answer
    x = 8,715.77

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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.