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Finding the Fourth Proportional to 13,381.71, 20,071.54 and 5,060.98

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Solution

The fourth proportional to 13,381.71, 20,071.54 and 5,060.98 is: 7,591.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381.71 : 20,071.54 = 5,060.98 : x
  2. Step 2: Convert to fraction form
    13,381.71/20,071.54 = 5,060.98/x
  3. Step 3: Cross multiply
    13,381.71x = 20,071.54 × 5,060.98
  4. Step 4: Simplify right side
    13,381.71x = 101,581,662.51
  5. Step 5: Solve for x
    x = 101,581,662.51/13,381.71
  6. Step 6: Final answer
    x = 7,591.08

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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.