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Finding the Fourth Proportional to 5,312.15, 7,952.83 and 4,749.34

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Solution

The fourth proportional to 5,312.15, 7,952.83 and 4,749.34 is: 7,110.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,312.15 : 7,952.83 = 4,749.34 : x
  2. Step 2: Convert to fraction form
    5,312.15/7,952.83 = 4,749.34/x
  3. Step 3: Cross multiply
    5,312.15x = 7,952.83 × 4,749.34
  4. Step 4: Simplify right side
    5,312.15x = 37,770,693.63
  5. Step 5: Solve for x
    x = 37,770,693.63/5,312.15
  6. Step 6: Final answer
    x = 7,110.25

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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.