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Finding the Fourth Proportional to 7,603.32, 11,387.34 and 7,340.50

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Solution

The fourth proportional to 7,603.32, 11,387.34 and 7,340.50 is: 10,993.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,603.32 : 11,387.34 = 7,340.50 : x
  2. Step 2: Convert to fraction form
    7,603.32/11,387.34 = 7,340.50/x
  3. Step 3: Cross multiply
    7,603.32x = 11,387.34 × 7,340.50
  4. Step 4: Simplify right side
    7,603.32x = 83,588,769.27
  5. Step 5: Solve for x
    x = 83,588,769.27/7,603.32
  6. Step 6: Final answer
    x = 10,993.72

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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.