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Finding the Fourth Proportional to 60,680.70, 91,215.45 and 43,271.10

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Solution

The fourth proportional to 60,680.70, 91,215.45 and 43,271.10 is: 65,045.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,680.70 : 91,215.45 = 43,271.10 : x
  2. Step 2: Convert to fraction form
    60,680.70/91,215.45 = 43,271.10/x
  3. Step 3: Cross multiply
    60,680.70x = 91,215.45 × 43,271.10
  4. Step 4: Simplify right side
    60,680.70x = 3,946,992,858.50
  5. Step 5: Solve for x
    x = 3,946,992,858.50/60,680.70
  6. Step 6: Final answer
    x = 65,045.28

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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.