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Finding the Fourth Proportional to 15,866.04, 21,895.06 and 8,792.45

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Solution

The fourth proportional to 15,866.04, 21,895.06 and 8,792.45 is: 12,133.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,866.04 : 21,895.06 = 8,792.45 : x
  2. Step 2: Convert to fraction form
    15,866.04/21,895.06 = 8,792.45/x
  3. Step 3: Cross multiply
    15,866.04x = 21,895.06 × 8,792.45
  4. Step 4: Simplify right side
    15,866.04x = 192,511,220.30
  5. Step 5: Solve for x
    x = 192,511,220.30/15,866.04
  6. Step 6: Final answer
    x = 12,133.54

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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.