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Finding the Fourth Proportional to 2,566.47, 3,848.80 and 922.58

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Solution

The fourth proportional to 2,566.47, 3,848.80 and 922.58 is: 1,383.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,566.47 : 3,848.80 = 922.58 : x
  2. Step 2: Convert to fraction form
    2,566.47/3,848.80 = 922.58/x
  3. Step 3: Cross multiply
    2,566.47x = 3,848.80 × 922.58
  4. Step 4: Simplify right side
    2,566.47x = 3,550,825.90
  5. Step 5: Solve for x
    x = 3,550,825.90/2,566.47
  6. Step 6: Final answer
    x = 1,383.54

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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.