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Finding the Fourth Proportional to 7,655.25, 10,564.25 and 4,343.25

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Solution

The fourth proportional to 7,655.25, 10,564.25 and 4,343.25 is: 5,993.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,655.25 : 10,564.25 = 4,343.25 : x
  2. Step 2: Convert to fraction form
    7,655.25/10,564.25 = 4,343.25/x
  3. Step 3: Cross multiply
    7,655.25x = 10,564.25 × 4,343.25
  4. Step 4: Simplify right side
    7,655.25x = 45,883,178.81
  5. Step 5: Solve for x
    x = 45,883,178.81/7,655.25
  6. Step 6: Final answer
    x = 5,993.69

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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.