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Finding the Fourth Proportional to 6,749.07, 9,313.42 and 4,980.03

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Solution

The fourth proportional to 6,749.07, 9,313.42 and 4,980.03 is: 6,872.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,749.07 : 9,313.42 = 4,980.03 : x
  2. Step 2: Convert to fraction form
    6,749.07/9,313.42 = 4,980.03/x
  3. Step 3: Cross multiply
    6,749.07x = 9,313.42 × 4,980.03
  4. Step 4: Simplify right side
    6,749.07x = 46,381,111.00
  5. Step 5: Solve for x
    x = 46,381,111.00/6,749.07
  6. Step 6: Final answer
    x = 6,872.22

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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.