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Finding the Fourth Proportional to 954.42, 1,313.30 and 925.87

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Solution

The fourth proportional to 954.42, 1,313.30 and 925.87 is: 1,274.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    954.42 : 1,313.30 = 925.87 : x
  2. Step 2: Convert to fraction form
    954.42/1,313.30 = 925.87/x
  3. Step 3: Cross multiply
    954.42x = 1,313.30 × 925.87
  4. Step 4: Simplify right side
    954.42x = 1,215,943.42
  5. Step 5: Solve for x
    x = 1,215,943.42/954.42
  6. Step 6: Final answer
    x = 1,274.01

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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.