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Finding the Fourth Proportional to 70,399.48, 105,588.18 and 23,014.20

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Solution

The fourth proportional to 70,399.48, 105,588.18 and 23,014.20 is: 34,517.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,399.48 : 105,588.18 = 23,014.20 : x
  2. Step 2: Convert to fraction form
    70,399.48/105,588.18 = 23,014.20/x
  3. Step 3: Cross multiply
    70,399.48x = 105,588.18 × 23,014.20
  4. Step 4: Simplify right side
    70,399.48x = 2,430,027,492.16
  5. Step 5: Solve for x
    x = 2,430,027,492.16/70,399.48
  6. Step 6: Final answer
    x = 34,517.69

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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.