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Finding the Fourth Proportional to 1,532.42, 2,113.83 and 964.34

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Solution

The fourth proportional to 1,532.42, 2,113.83 and 964.34 is: 1,330.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,532.42 : 2,113.83 = 964.34 : x
  2. Step 2: Convert to fraction form
    1,532.42/2,113.83 = 964.34/x
  3. Step 3: Cross multiply
    1,532.42x = 2,113.83 × 964.34
  4. Step 4: Simplify right side
    1,532.42x = 2,038,450.82
  5. Step 5: Solve for x
    x = 2,038,450.82/1,532.42
  6. Step 6: Final answer
    x = 1,330.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.