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Finding the Fourth Proportional to 13,903.82, 19,187.58 and 7,935.37

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Solution

The fourth proportional to 13,903.82, 19,187.58 and 7,935.37 is: 10,950.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,903.82 : 19,187.58 = 7,935.37 : x
  2. Step 2: Convert to fraction form
    13,903.82/19,187.58 = 7,935.37/x
  3. Step 3: Cross multiply
    13,903.82x = 19,187.58 × 7,935.37
  4. Step 4: Simplify right side
    13,903.82x = 152,260,430.93
  5. Step 5: Solve for x
    x = 152,260,430.93/13,903.82
  6. Step 6: Final answer
    x = 10,950.98

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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.