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Finding the Fourth Proportional to 66,334.48, 99,514.84 and 18,949.98

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Solution

The fourth proportional to 66,334.48, 99,514.84 and 18,949.98 is: 28,428.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,334.48 : 99,514.84 = 18,949.98 : x
  2. Step 2: Convert to fraction form
    66,334.48/99,514.84 = 18,949.98/x
  3. Step 3: Cross multiply
    66,334.48x = 99,514.84 × 18,949.98
  4. Step 4: Simplify right side
    66,334.48x = 1,885,803,777.50
  5. Step 5: Solve for x
    x = 1,885,803,777.50/66,334.48
  6. Step 6: Final answer
    x = 28,428.71

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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.