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Finding the Fourth Proportional to 70,670.70, 105,969.60 and 26,274.60

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Solution

The fourth proportional to 70,670.70, 105,969.60 and 26,274.60 is: 39,398.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,670.70 : 105,969.60 = 26,274.60 : x
  2. Step 2: Convert to fraction form
    70,670.70/105,969.60 = 26,274.60/x
  3. Step 3: Cross multiply
    70,670.70x = 105,969.60 × 26,274.60
  4. Step 4: Simplify right side
    70,670.70x = 2,784,308,852.16
  5. Step 5: Solve for x
    x = 2,784,308,852.16/70,670.70
  6. Step 6: Final answer
    x = 39,398.35

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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.