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Finding the Fourth Proportional to 1,501.92, 2,073.69 and 942.60

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Solution

The fourth proportional to 1,501.92, 2,073.69 and 942.60 is: 1,301.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,501.92 : 2,073.69 = 942.60 : x
  2. Step 2: Convert to fraction form
    1,501.92/2,073.69 = 942.60/x
  3. Step 3: Cross multiply
    1,501.92x = 2,073.69 × 942.60
  4. Step 4: Simplify right side
    1,501.92x = 1,954,660.19
  5. Step 5: Solve for x
    x = 1,954,660.19/1,501.92
  6. Step 6: Final answer
    x = 1,301.44

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1.5x scale

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.