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Finding the Fourth Proportional to 3,749.12, 5,623.70 and 975.62

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Solution

The fourth proportional to 3,749.12, 5,623.70 and 975.62 is: 1,463.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,749.12 : 5,623.70 = 975.62 : x
  2. Step 2: Convert to fraction form
    3,749.12/5,623.70 = 975.62/x
  3. Step 3: Cross multiply
    3,749.12x = 5,623.70 × 975.62
  4. Step 4: Simplify right side
    3,749.12x = 5,486,594.19
  5. Step 5: Solve for x
    x = 5,486,594.19/3,749.12
  6. Step 6: Final answer
    x = 1,463.44

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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.