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Finding the Fourth Proportional to 12,795.66, 17,653.95 and 7,205.58

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Solution

The fourth proportional to 12,795.66, 17,653.95 and 7,205.58 is: 9,941.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,795.66 : 17,653.95 = 7,205.58 : x
  2. Step 2: Convert to fraction form
    12,795.66/17,653.95 = 7,205.58/x
  3. Step 3: Cross multiply
    12,795.66x = 17,653.95 × 7,205.58
  4. Step 4: Simplify right side
    12,795.66x = 127,206,949.04
  5. Step 5: Solve for x
    x = 127,206,949.04/12,795.66
  6. Step 6: Final answer
    x = 9,941.41

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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.