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Finding the Fourth Proportional to 70,003.90, 105,005.85 and 25,632.10

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Solution

The fourth proportional to 70,003.90, 105,005.85 and 25,632.10 is: 38,448.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,003.90 : 105,005.85 = 25,632.10 : x
  2. Step 2: Convert to fraction form
    70,003.90/105,005.85 = 25,632.10/x
  3. Step 3: Cross multiply
    70,003.90x = 105,005.85 × 25,632.10
  4. Step 4: Simplify right side
    70,003.90x = 2,691,520,447.79
  5. Step 5: Solve for x
    x = 2,691,520,447.79/70,003.90
  6. Step 6: Final answer
    x = 38,448.15

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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.