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Finding the Fourth Proportional to 66,062, 99,073.56 and 19,303.76

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Solution

The fourth proportional to 66,062, 99,073.56 and 19,303.76 is: 28,949.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,062 : 99,073.56 = 19,303.76 : x
  2. Step 2: Convert to fraction form
    66,062/99,073.56 = 19,303.76/x
  3. Step 3: Cross multiply
    66,062x = 99,073.56 × 19,303.76
  4. Step 4: Simplify right side
    66,062x = 1,912,492,224.59
  5. Step 5: Solve for x
    x = 1,912,492,224.59/66,062
  6. Step 6: Final answer
    x = 28,949.96

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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.