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Finding the Fourth Proportional to 12,012.72, 18,033.93 and 5,693.64

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Solution

The fourth proportional to 12,012.72, 18,033.93 and 5,693.64 is: 8,547.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,012.72 : 18,033.93 = 5,693.64 : x
  2. Step 2: Convert to fraction form
    12,012.72/18,033.93 = 5,693.64/x
  3. Step 3: Cross multiply
    12,012.72x = 18,033.93 × 5,693.64
  4. Step 4: Simplify right side
    12,012.72x = 102,678,705.21
  5. Step 5: Solve for x
    x = 102,678,705.21/12,012.72
  6. Step 6: Final answer
    x = 8,547.50

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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.