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Finding the Fourth Proportional to 66,197.07, 91,264.19 and 54,824.67

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Solution

The fourth proportional to 66,197.07, 91,264.19 and 54,824.67 is: 75,585.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,197.07 : 91,264.19 = 54,824.67 : x
  2. Step 2: Convert to fraction form
    66,197.07/91,264.19 = 54,824.67/x
  3. Step 3: Cross multiply
    66,197.07x = 91,264.19 × 54,824.67
  4. Step 4: Simplify right side
    66,197.07x = 5,003,528,825.44
  5. Step 5: Solve for x
    x = 5,003,528,825.44/66,197.07
  6. Step 6: Final answer
    x = 75,585.35

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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.