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Finding the Fourth Proportional to 3,442.72, 4,750.98 and 1,870.82

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Solution

The fourth proportional to 3,442.72, 4,750.98 and 1,870.82 is: 2,581.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,442.72 : 4,750.98 = 1,870.82 : x
  2. Step 2: Convert to fraction form
    3,442.72/4,750.98 = 1,870.82/x
  3. Step 3: Cross multiply
    3,442.72x = 4,750.98 × 1,870.82
  4. Step 4: Simplify right side
    3,442.72x = 8,888,228.40
  5. Step 5: Solve for x
    x = 8,888,228.40/3,442.72
  6. Step 6: Final answer
    x = 2,581.75

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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.