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Finding the Fourth Proportional to 2,356.65, 3,534.57 and 895.86

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Solution

The fourth proportional to 2,356.65, 3,534.57 and 895.86 is: 1,343.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,356.65 : 3,534.57 = 895.86 : x
  2. Step 2: Convert to fraction form
    2,356.65/3,534.57 = 895.86/x
  3. Step 3: Cross multiply
    2,356.65x = 3,534.57 × 895.86
  4. Step 4: Simplify right side
    2,356.65x = 3,166,479.88
  5. Step 5: Solve for x
    x = 3,166,479.88/2,356.65
  6. Step 6: Final answer
    x = 1,343.64

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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.