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Finding the Fourth Proportional to 51,866.89, 77,808.54 and 18,586.22

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Solution

The fourth proportional to 51,866.89, 77,808.54 and 18,586.22 is: 27,882.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,866.89 : 77,808.54 = 18,586.22 : x
  2. Step 2: Convert to fraction form
    51,866.89/77,808.54 = 18,586.22/x
  3. Step 3: Cross multiply
    51,866.89x = 77,808.54 × 18,586.22
  4. Step 4: Simplify right side
    51,866.89x = 1,446,166,642.32
  5. Step 5: Solve for x
    x = 1,446,166,642.32/51,866.89
  6. Step 6: Final answer
    x = 27,882.27

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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.