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Finding the Fourth Proportional to 14,340.30, 19,792.79 and 7,969.08

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Solution

The fourth proportional to 14,340.30, 19,792.79 and 7,969.08 is: 10,999.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,340.30 : 19,792.79 = 7,969.08 : x
  2. Step 2: Convert to fraction form
    14,340.30/19,792.79 = 7,969.08/x
  3. Step 3: Cross multiply
    14,340.30x = 19,792.79 × 7,969.08
  4. Step 4: Simplify right side
    14,340.30x = 157,730,287.09
  5. Step 5: Solve for x
    x = 157,730,287.09/14,340.30
  6. Step 6: Final answer
    x = 10,999.09

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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.