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Finding the Fourth Proportional to 40,894.80, 61,342.20 and 40,635.60

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Solution

The fourth proportional to 40,894.80, 61,342.20 and 40,635.60 is: 60,953.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,894.80 : 61,342.20 = 40,635.60 : x
  2. Step 2: Convert to fraction form
    40,894.80/61,342.20 = 40,635.60/x
  3. Step 3: Cross multiply
    40,894.80x = 61,342.20 × 40,635.60
  4. Step 4: Simplify right side
    40,894.80x = 2,492,677,102.32
  5. Step 5: Solve for x
    x = 2,492,677,102.32/40,894.80
  6. Step 6: Final answer
    x = 60,953.40

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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.