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Finding the Fourth Proportional to 4,985.82, 7,478.46 and 1,523.07

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Solution

The fourth proportional to 4,985.82, 7,478.46 and 1,523.07 is: 2,284.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.82 : 7,478.46 = 1,523.07 : x
  2. Step 2: Convert to fraction form
    4,985.82/7,478.46 = 1,523.07/x
  3. Step 3: Cross multiply
    4,985.82x = 7,478.46 × 1,523.07
  4. Step 4: Simplify right side
    4,985.82x = 11,390,218.07
  5. Step 5: Solve for x
    x = 11,390,218.07/4,985.82
  6. Step 6: Final answer
    x = 2,284.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.