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Finding the Fourth Proportional to 26,064.36, 39,087 and 9,420.39

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Solution

The fourth proportional to 26,064.36, 39,087 and 9,420.39 is: 14,127.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,064.36 : 39,087 = 9,420.39 : x
  2. Step 2: Convert to fraction form
    26,064.36/39,087 = 9,420.39/x
  3. Step 3: Cross multiply
    26,064.36x = 39,087 × 9,420.39
  4. Step 4: Simplify right side
    26,064.36x = 368,214,783.93
  5. Step 5: Solve for x
    x = 368,214,783.93/26,064.36
  6. Step 6: Final answer
    x = 14,127.14

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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.