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Finding the Fourth Proportional to 2,093.92, 3,140.88 and 707

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Solution

The fourth proportional to 2,093.92, 3,140.88 and 707 is: 1,060.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,093.92 : 3,140.88 = 707 : x
  2. Step 2: Convert to fraction form
    2,093.92/3,140.88 = 707/x
  3. Step 3: Cross multiply
    2,093.92x = 3,140.88 × 707
  4. Step 4: Simplify right side
    2,093.92x = 2,220,602.16
  5. Step 5: Solve for x
    x = 2,220,602.16/2,093.92
  6. Step 6: Final answer
    x = 1,060.50

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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.