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Finding the Fourth Proportional to 13,042.48, 17,998.48 and 7,074.28

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Solution

The fourth proportional to 13,042.48, 17,998.48 and 7,074.28 is: 9,762.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,042.48 : 17,998.48 = 7,074.28 : x
  2. Step 2: Convert to fraction form
    13,042.48/17,998.48 = 7,074.28/x
  3. Step 3: Cross multiply
    13,042.48x = 17,998.48 × 7,074.28
  4. Step 4: Simplify right side
    13,042.48x = 127,326,287.09
  5. Step 5: Solve for x
    x = 127,326,287.09/13,042.48
  6. Step 6: Final answer
    x = 9,762.43

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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.