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Finding the Fourth Proportional to 2,858.67, 4,253.76 and 2,848.95

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Solution

The fourth proportional to 2,858.67, 4,253.76 and 2,848.95 is: 4,239.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858.67 : 4,253.76 = 2,848.95 : x
  2. Step 2: Convert to fraction form
    2,858.67/4,253.76 = 2,848.95/x
  3. Step 3: Cross multiply
    2,858.67x = 4,253.76 × 2,848.95
  4. Step 4: Simplify right side
    2,858.67x = 12,118,749.55
  5. Step 5: Solve for x
    x = 12,118,749.55/2,858.67
  6. Step 6: Final answer
    x = 4,239.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.