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Finding the Fourth Proportional to 4,750.51, 7,090.98 and 4,189.39

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Solution

The fourth proportional to 4,750.51, 7,090.98 and 4,189.39 is: 6,253.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,750.51 : 7,090.98 = 4,189.39 : x
  2. Step 2: Convert to fraction form
    4,750.51/7,090.98 = 4,189.39/x
  3. Step 3: Cross multiply
    4,750.51x = 7,090.98 × 4,189.39
  4. Step 4: Simplify right side
    4,750.51x = 29,706,887.15
  5. Step 5: Solve for x
    x = 29,706,887.15/4,750.51
  6. Step 6: Final answer
    x = 6,253.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.