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Finding the Fourth Proportional to 7,498.88, 10,348.45 and 4,186.88

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Solution

The fourth proportional to 7,498.88, 10,348.45 and 4,186.88 is: 5,777.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,498.88 : 10,348.45 = 4,186.88 : x
  2. Step 2: Convert to fraction form
    7,498.88/10,348.45 = 4,186.88/x
  3. Step 3: Cross multiply
    7,498.88x = 10,348.45 × 4,186.88
  4. Step 4: Simplify right side
    7,498.88x = 43,327,656.13
  5. Step 5: Solve for x
    x = 43,327,656.13/7,498.88
  6. Step 6: Final answer
    x = 5,777.89

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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.