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Finding the Fourth Proportional to 66,094.56, 91,211.20 and 35,880.16

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Solution

The fourth proportional to 66,094.56, 91,211.20 and 35,880.16 is: 49,515.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,094.56 : 91,211.20 = 35,880.16 : x
  2. Step 2: Convert to fraction form
    66,094.56/91,211.20 = 35,880.16/x
  3. Step 3: Cross multiply
    66,094.56x = 91,211.20 × 35,880.16
  4. Step 4: Simplify right side
    66,094.56x = 3,272,672,449.79
  5. Step 5: Solve for x
    x = 3,272,672,449.79/66,094.56
  6. Step 6: Final answer
    x = 49,515.00

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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.