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Finding the Fourth Proportional to 70,415.02, 105,639.15 and 23,029.93

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Solution

The fourth proportional to 70,415.02, 105,639.15 and 23,029.93 is: 34,550.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,415.02 : 105,639.15 = 23,029.93 : x
  2. Step 2: Convert to fraction form
    70,415.02/105,639.15 = 23,029.93/x
  3. Step 3: Cross multiply
    70,415.02x = 105,639.15 × 23,029.93
  4. Step 4: Simplify right side
    70,415.02x = 2,432,862,499.57
  5. Step 5: Solve for x
    x = 2,432,862,499.57/70,415.02
  6. Step 6: Final answer
    x = 34,550.33

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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.