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Finding the Fourth Proportional to 66,201.75, 99,302.63 and 16,953.75

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Solution

The fourth proportional to 66,201.75, 99,302.63 and 16,953.75 is: 25,430.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,201.75 : 99,302.63 = 16,953.75 : x
  2. Step 2: Convert to fraction form
    66,201.75/99,302.63 = 16,953.75/x
  3. Step 3: Cross multiply
    66,201.75x = 99,302.63 × 16,953.75
  4. Step 4: Simplify right side
    66,201.75x = 1,683,551,878.59
  5. Step 5: Solve for x
    x = 1,683,551,878.59/66,201.75
  6. Step 6: Final answer
    x = 25,430.63

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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.