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Finding the Fourth Proportional to 64,274.90, 88,698.39 and 35,981.60

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Solution

The fourth proportional to 64,274.90, 88,698.39 and 35,981.60 is: 49,654.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,274.90 : 88,698.39 = 35,981.60 : x
  2. Step 2: Convert to fraction form
    64,274.90/88,698.39 = 35,981.60/x
  3. Step 3: Cross multiply
    64,274.90x = 88,698.39 × 35,981.60
  4. Step 4: Simplify right side
    64,274.90x = 3,191,509,989.62
  5. Step 5: Solve for x
    x = 3,191,509,989.62/64,274.90
  6. Step 6: Final answer
    x = 49,654.06

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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.