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Finding the Fourth Proportional to 1,586.98, 2,376.48 and 961.94

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Solution

The fourth proportional to 1,586.98, 2,376.48 and 961.94 is: 1,440.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586.98 : 2,376.48 = 961.94 : x
  2. Step 2: Convert to fraction form
    1,586.98/2,376.48 = 961.94/x
  3. Step 3: Cross multiply
    1,586.98x = 2,376.48 × 961.94
  4. Step 4: Simplify right side
    1,586.98x = 2,286,031.17
  5. Step 5: Solve for x
    x = 2,286,031.17/1,586.98
  6. Step 6: Final answer
    x = 1,440.49

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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.