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Finding the Fourth Proportional to 66,292.37, 99,438.56 and 54,580.99

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Solution

The fourth proportional to 66,292.37, 99,438.56 and 54,580.99 is: 81,871.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,292.37 : 99,438.56 = 54,580.99 : x
  2. Step 2: Convert to fraction form
    66,292.37/99,438.56 = 54,580.99/x
  3. Step 3: Cross multiply
    66,292.37x = 99,438.56 × 54,580.99
  4. Step 4: Simplify right side
    66,292.37x = 5,427,455,072.11
  5. Step 5: Solve for x
    x = 5,427,455,072.11/66,292.37
  6. Step 6: Final answer
    x = 81,871.48

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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.