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Finding the Fourth Proportional to 7,656.08, 11,420.50 and 7,529.22

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Solution

The fourth proportional to 7,656.08, 11,420.50 and 7,529.22 is: 11,231.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,656.08 : 11,420.50 = 7,529.22 : x
  2. Step 2: Convert to fraction form
    7,656.08/11,420.50 = 7,529.22/x
  3. Step 3: Cross multiply
    7,656.08x = 11,420.50 × 7,529.22
  4. Step 4: Simplify right side
    7,656.08x = 85,987,457.01
  5. Step 5: Solve for x
    x = 85,987,457.01/7,656.08
  6. Step 6: Final answer
    x = 11,231.26

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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.