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Finding the Fourth Proportional to 66,255.51, 91,435.01 and 37,966.67

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Solution

The fourth proportional to 66,255.51, 91,435.01 and 37,966.67 is: 52,395.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,255.51 : 91,435.01 = 37,966.67 : x
  2. Step 2: Convert to fraction form
    66,255.51/91,435.01 = 37,966.67/x
  3. Step 3: Cross multiply
    66,255.51x = 91,435.01 × 37,966.67
  4. Step 4: Simplify right side
    66,255.51x = 3,471,482,851.12
  5. Step 5: Solve for x
    x = 3,471,482,851.12/66,255.51
  6. Step 6: Final answer
    x = 52,395.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.