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Finding the Fourth Proportional to 13,009.88, 17,953.76 and 7,041.66

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Solution

The fourth proportional to 13,009.88, 17,953.76 and 7,041.66 is: 9,717.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,009.88 : 17,953.76 = 7,041.66 : x
  2. Step 2: Convert to fraction form
    13,009.88/17,953.76 = 7,041.66/x
  3. Step 3: Cross multiply
    13,009.88x = 17,953.76 × 7,041.66
  4. Step 4: Simplify right side
    13,009.88x = 126,424,273.64
  5. Step 5: Solve for x
    x = 126,424,273.64/13,009.88
  6. Step 6: Final answer
    x = 9,717.56

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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.