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Finding the Fourth Proportional to 7,761.03, 10,710.26 and 4,224.23

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Solution

The fourth proportional to 7,761.03, 10,710.26 and 4,224.23 is: 5,829.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,761.03 : 10,710.26 = 4,224.23 : x
  2. Step 2: Convert to fraction form
    7,761.03/10,710.26 = 4,224.23/x
  3. Step 3: Cross multiply
    7,761.03x = 10,710.26 × 4,224.23
  4. Step 4: Simplify right side
    7,761.03x = 45,242,601.60
  5. Step 5: Solve for x
    x = 45,242,601.60/7,761.03
  6. Step 6: Final answer
    x = 5,829.46

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Half scale
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Double scale
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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.