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Finding the Fourth Proportional to 1,965.50, 2,948.68 and 795.50

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Solution

The fourth proportional to 1,965.50, 2,948.68 and 795.50 is: 1,193.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965.50 : 2,948.68 = 795.50 : x
  2. Step 2: Convert to fraction form
    1,965.50/2,948.68 = 795.50/x
  3. Step 3: Cross multiply
    1,965.50x = 2,948.68 × 795.50
  4. Step 4: Simplify right side
    1,965.50x = 2,345,661.72
  5. Step 5: Solve for x
    x = 2,345,661.72/1,965.50
  6. Step 6: Final answer
    x = 1,193.42

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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.