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Finding the Fourth Proportional to 55,657.17, 83,493.54 and 18,220.17

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Solution

The fourth proportional to 55,657.17, 83,493.54 and 18,220.17 is: 27,332.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,657.17 : 83,493.54 = 18,220.17 : x
  2. Step 2: Convert to fraction form
    55,657.17/83,493.54 = 18,220.17/x
  3. Step 3: Cross multiply
    55,657.17x = 83,493.54 × 18,220.17
  4. Step 4: Simplify right side
    55,657.17x = 1,521,266,492.70
  5. Step 5: Solve for x
    x = 1,521,266,492.70/55,657.17
  6. Step 6: Final answer
    x = 27,332.80

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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.