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Finding the Fourth Proportional to 11,970.81, 16,520.13 and 6,935.04

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Solution

The fourth proportional to 11,970.81, 16,520.13 and 6,935.04 is: 9,570.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,970.81 : 16,520.13 = 6,935.04 : x
  2. Step 2: Convert to fraction form
    11,970.81/16,520.13 = 6,935.04/x
  3. Step 3: Cross multiply
    11,970.81x = 16,520.13 × 6,935.04
  4. Step 4: Simplify right side
    11,970.81x = 114,567,762.36
  5. Step 5: Solve for x
    x = 114,567,762.36/11,970.81
  6. Step 6: Final answer
    x = 9,570.59

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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.