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Finding the Fourth Proportional to 35,007.66, 52,469.91 and 20,970.77

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Solution

The fourth proportional to 35,007.66, 52,469.91 and 20,970.77 is: 31,431.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,007.66 : 52,469.91 = 20,970.77 : x
  2. Step 2: Convert to fraction form
    35,007.66/52,469.91 = 20,970.77/x
  3. Step 3: Cross multiply
    35,007.66x = 52,469.91 × 20,970.77
  4. Step 4: Simplify right side
    35,007.66x = 1,100,334,152.18
  5. Step 5: Solve for x
    x = 1,100,334,152.18/35,007.66
  6. Step 6: Final answer
    x = 31,431.24

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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.