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Finding the Fourth Proportional to 7,543.64, 10,410.06 and 4,186.42

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Solution

The fourth proportional to 7,543.64, 10,410.06 and 4,186.42 is: 5,777.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,543.64 : 10,410.06 = 4,186.42 : x
  2. Step 2: Convert to fraction form
    7,543.64/10,410.06 = 4,186.42/x
  3. Step 3: Cross multiply
    7,543.64x = 10,410.06 × 4,186.42
  4. Step 4: Simplify right side
    7,543.64x = 43,580,896.40
  5. Step 5: Solve for x
    x = 43,580,896.40/7,543.64
  6. Step 6: Final answer
    x = 5,777.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.