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Finding the Fourth Proportional to 12,362.45, 17,060.21 and 6,697.21

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Solution

The fourth proportional to 12,362.45, 17,060.21 and 6,697.21 is: 9,242.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,362.45 : 17,060.21 = 6,697.21 : x
  2. Step 2: Convert to fraction form
    12,362.45/17,060.21 = 6,697.21/x
  3. Step 3: Cross multiply
    12,362.45x = 17,060.21 × 6,697.21
  4. Step 4: Simplify right side
    12,362.45x = 114,255,809.01
  5. Step 5: Solve for x
    x = 114,255,809.01/12,362.45
  6. Step 6: Final answer
    x = 9,242.17

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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.