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Finding the Fourth Proportional to 13,953.96, 19,237.50 and 9,968.13

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Solution

The fourth proportional to 13,953.96, 19,237.50 and 9,968.13 is: 13,742.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953.96 : 19,237.50 = 9,968.13 : x
  2. Step 2: Convert to fraction form
    13,953.96/19,237.50 = 9,968.13/x
  3. Step 3: Cross multiply
    13,953.96x = 19,237.50 × 9,968.13
  4. Step 4: Simplify right side
    13,953.96x = 191,761,900.88
  5. Step 5: Solve for x
    x = 191,761,900.88/13,953.96
  6. Step 6: Final answer
    x = 13,742.47

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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.