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Finding the Fourth Proportional to 13,094.68, 18,071 and 7,428.34

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Solution

The fourth proportional to 13,094.68, 18,071 and 7,428.34 is: 10,251.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,094.68 : 18,071 = 7,428.34 : x
  2. Step 2: Convert to fraction form
    13,094.68/18,071 = 7,428.34/x
  3. Step 3: Cross multiply
    13,094.68x = 18,071 × 7,428.34
  4. Step 4: Simplify right side
    13,094.68x = 134,237,532.14
  5. Step 5: Solve for x
    x = 134,237,532.14/13,094.68
  6. Step 6: Final answer
    x = 10,251.30

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Double scale
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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.