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Finding the Fourth Proportional to 7,955.76, 10,973.64 and 5,433.42

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Solution

The fourth proportional to 7,955.76, 10,973.64 and 5,433.42 is: 7,494.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,955.76 : 10,973.64 = 5,433.42 : x
  2. Step 2: Convert to fraction form
    7,955.76/10,973.64 = 5,433.42/x
  3. Step 3: Cross multiply
    7,955.76x = 10,973.64 × 5,433.42
  4. Step 4: Simplify right side
    7,955.76x = 59,624,395.05
  5. Step 5: Solve for x
    x = 59,624,395.05/7,955.76
  6. Step 6: Final answer
    x = 7,494.49

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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.