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Finding the Fourth Proportional to 7,572.88, 10,453.80 and 5,090.32

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Solution

The fourth proportional to 7,572.88, 10,453.80 and 5,090.32 is: 7,026.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,572.88 : 10,453.80 = 5,090.32 : x
  2. Step 2: Convert to fraction form
    7,572.88/10,453.80 = 5,090.32/x
  3. Step 3: Cross multiply
    7,572.88x = 10,453.80 × 5,090.32
  4. Step 4: Simplify right side
    7,572.88x = 53,213,187.22
  5. Step 5: Solve for x
    x = 53,213,187.22/7,572.88
  6. Step 6: Final answer
    x = 7,026.81

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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.