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Finding the Fourth Proportional to 11,795.68, 16,275.84 and 7,017.20

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Solution

The fourth proportional to 11,795.68, 16,275.84 and 7,017.20 is: 9,682.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,795.68 : 16,275.84 = 7,017.20 : x
  2. Step 2: Convert to fraction form
    11,795.68/16,275.84 = 7,017.20/x
  3. Step 3: Cross multiply
    11,795.68x = 16,275.84 × 7,017.20
  4. Step 4: Simplify right side
    11,795.68x = 114,210,824.45
  5. Step 5: Solve for x
    x = 114,210,824.45/11,795.68
  6. Step 6: Final answer
    x = 9,682.43

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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.