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Finding the Fourth Proportional to 70,647.16, 105,986.35 and 23,276.86

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Solution

The fourth proportional to 70,647.16, 105,986.35 and 23,276.86 is: 34,920.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,647.16 : 105,986.35 = 23,276.86 : x
  2. Step 2: Convert to fraction form
    70,647.16/105,986.35 = 23,276.86/x
  3. Step 3: Cross multiply
    70,647.16x = 105,986.35 × 23,276.86
  4. Step 4: Simplify right side
    70,647.16x = 2,467,028,980.48
  5. Step 5: Solve for x
    x = 2,467,028,980.48/70,647.16
  6. Step 6: Final answer
    x = 34,920.43

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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.