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Finding the Fourth Proportional to 8,953.44, 13,369.80 and 7,313.22

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Solution

The fourth proportional to 8,953.44, 13,369.80 and 7,313.22 is: 10,920.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,953.44 : 13,369.80 = 7,313.22 : x
  2. Step 2: Convert to fraction form
    8,953.44/13,369.80 = 7,313.22/x
  3. Step 3: Cross multiply
    8,953.44x = 13,369.80 × 7,313.22
  4. Step 4: Simplify right side
    8,953.44x = 97,776,288.76
  5. Step 5: Solve for x
    x = 97,776,288.76/8,953.44
  6. Step 6: Final answer
    x = 10,920.53

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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.