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Finding the Fourth Proportional to 55,415.40, 83,066.40 and 27,292.20

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Solution

The fourth proportional to 55,415.40, 83,066.40 and 27,292.20 is: 40,910.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,415.40 : 83,066.40 = 27,292.20 : x
  2. Step 2: Convert to fraction form
    55,415.40/83,066.40 = 27,292.20/x
  3. Step 3: Cross multiply
    55,415.40x = 83,066.40 × 27,292.20
  4. Step 4: Simplify right side
    55,415.40x = 2,267,064,802.08
  5. Step 5: Solve for x
    x = 2,267,064,802.08/55,415.40
  6. Step 6: Final answer
    x = 40,910.38

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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.