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Finding the Fourth Proportional to 19,693.63, 29,528.56 and 7,849.23

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Solution

The fourth proportional to 19,693.63, 29,528.56 and 7,849.23 is: 11,769.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,693.63 : 29,528.56 = 7,849.23 : x
  2. Step 2: Convert to fraction form
    19,693.63/29,528.56 = 7,849.23/x
  3. Step 3: Cross multiply
    19,693.63x = 29,528.56 × 7,849.23
  4. Step 4: Simplify right side
    19,693.63x = 231,776,459.01
  5. Step 5: Solve for x
    x = 231,776,459.01/19,693.63
  6. Step 6: Final answer
    x = 11,769.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.