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Finding the Fourth Proportional to 7,223.10, 10,810.65 and 5,243.10

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Solution

The fourth proportional to 7,223.10, 10,810.65 and 5,243.10 is: 7,847.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,223.10 : 10,810.65 = 5,243.10 : x
  2. Step 2: Convert to fraction form
    7,223.10/10,810.65 = 5,243.10/x
  3. Step 3: Cross multiply
    7,223.10x = 10,810.65 × 5,243.10
  4. Step 4: Simplify right side
    7,223.10x = 56,681,319.02
  5. Step 5: Solve for x
    x = 56,681,319.02/7,223.10
  6. Step 6: Final answer
    x = 7,847.23

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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.