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Finding the Fourth Proportional to 4,932.60, 7,388.10 and 4,284.60

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Solution

The fourth proportional to 4,932.60, 7,388.10 and 4,284.60 is: 6,417.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,932.60 : 7,388.10 = 4,284.60 : x
  2. Step 2: Convert to fraction form
    4,932.60/7,388.10 = 4,284.60/x
  3. Step 3: Cross multiply
    4,932.60x = 7,388.10 × 4,284.60
  4. Step 4: Simplify right side
    4,932.60x = 31,655,053.26
  5. Step 5: Solve for x
    x = 31,655,053.26/4,932.60
  6. Step 6: Final answer
    x = 6,417.52

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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.