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Finding the Fourth Proportional to 15,673.26, 21,629.52 and 8,599.94

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Solution

The fourth proportional to 15,673.26, 21,629.52 and 8,599.94 is: 11,868.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,673.26 : 21,629.52 = 8,599.94 : x
  2. Step 2: Convert to fraction form
    15,673.26/21,629.52 = 8,599.94/x
  3. Step 3: Cross multiply
    15,673.26x = 21,629.52 × 8,599.94
  4. Step 4: Simplify right side
    15,673.26x = 186,012,466.08
  5. Step 5: Solve for x
    x = 186,012,466.08/15,673.26
  6. Step 6: Final answer
    x = 11,868.14

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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.