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Finding the Fourth Proportional to 1,202.48, 1,663.08 and 956.24

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Solution

The fourth proportional to 1,202.48, 1,663.08 and 956.24 is: 1,322.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,202.48 : 1,663.08 = 956.24 : x
  2. Step 2: Convert to fraction form
    1,202.48/1,663.08 = 956.24/x
  3. Step 3: Cross multiply
    1,202.48x = 1,663.08 × 956.24
  4. Step 4: Simplify right side
    1,202.48x = 1,590,303.62
  5. Step 5: Solve for x
    x = 1,590,303.62/1,202.48
  6. Step 6: Final answer
    x = 1,322.52

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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.