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Finding the Fourth Proportional to 7,293.40, 10,940.10 and 3,132.70

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Solution

The fourth proportional to 7,293.40, 10,940.10 and 3,132.70 is: 4,699.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,293.40 : 10,940.10 = 3,132.70 : x
  2. Step 2: Convert to fraction form
    7,293.40/10,940.10 = 3,132.70/x
  3. Step 3: Cross multiply
    7,293.40x = 10,940.10 × 3,132.70
  4. Step 4: Simplify right side
    7,293.40x = 34,272,051.27
  5. Step 5: Solve for x
    x = 34,272,051.27/7,293.40
  6. Step 6: Final answer
    x = 4,699.05

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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.