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Finding the Fourth Proportional to 4,491.72, 6,736.68 and 1,570.32

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Solution

The fourth proportional to 4,491.72, 6,736.68 and 1,570.32 is: 2,355.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,491.72 : 6,736.68 = 1,570.32 : x
  2. Step 2: Convert to fraction form
    4,491.72/6,736.68 = 1,570.32/x
  3. Step 3: Cross multiply
    4,491.72x = 6,736.68 × 1,570.32
  4. Step 4: Simplify right side
    4,491.72x = 10,578,743.34
  5. Step 5: Solve for x
    x = 10,578,743.34/4,491.72
  6. Step 6: Final answer
    x = 2,355.17

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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.