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Finding the Fourth Proportional to 12,415.93, 17,133.94 and 6,750.67

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Solution

The fourth proportional to 12,415.93, 17,133.94 and 6,750.67 is: 9,315.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,415.93 : 17,133.94 = 6,750.67 : x
  2. Step 2: Convert to fraction form
    12,415.93/17,133.94 = 6,750.67/x
  3. Step 3: Cross multiply
    12,415.93x = 17,133.94 × 6,750.67
  4. Step 4: Simplify right side
    12,415.93x = 115,665,574.74
  5. Step 5: Solve for x
    x = 115,665,574.74/12,415.93
  6. Step 6: Final answer
    x = 9,315.90

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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.