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Finding the Fourth Proportional to 7,760.93, 10,710.09 and 4,224.13

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Solution

The fourth proportional to 7,760.93, 10,710.09 and 4,224.13 is: 5,829.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,760.93 : 10,710.09 = 4,224.13 : x
  2. Step 2: Convert to fraction form
    7,760.93/10,710.09 = 4,224.13/x
  3. Step 3: Cross multiply
    7,760.93x = 10,710.09 × 4,224.13
  4. Step 4: Simplify right side
    7,760.93x = 45,240,810.02
  5. Step 5: Solve for x
    x = 45,240,810.02/7,760.93
  6. Step 6: Final answer
    x = 5,829.30

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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.