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Finding the Fourth Proportional to 3,753.51, 5,630.60 and 980.16

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Solution

The fourth proportional to 3,753.51, 5,630.60 and 980.16 is: 1,470.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,753.51 : 5,630.60 = 980.16 : x
  2. Step 2: Convert to fraction form
    3,753.51/5,630.60 = 980.16/x
  3. Step 3: Cross multiply
    3,753.51x = 5,630.60 × 980.16
  4. Step 4: Simplify right side
    3,753.51x = 5,518,884.00
  5. Step 5: Solve for x
    x = 5,518,884.00/3,753.51
  6. Step 6: Final answer
    x = 1,470.33

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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.