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Finding the Fourth Proportional to 7,180.22, 10,709.16 and 7,055.62

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Solution

The fourth proportional to 7,180.22, 10,709.16 and 7,055.62 is: 10,523.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180.22 : 10,709.16 = 7,055.62 : x
  2. Step 2: Convert to fraction form
    7,180.22/10,709.16 = 7,055.62/x
  3. Step 3: Cross multiply
    7,180.22x = 10,709.16 × 7,055.62
  4. Step 4: Simplify right side
    7,180.22x = 75,559,763.48
  5. Step 5: Solve for x
    x = 75,559,763.48/7,180.22
  6. Step 6: Final answer
    x = 10,523.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.