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Finding the Fourth Proportional to 35,859.22, 53,789.10 and 12,485.62

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Solution

The fourth proportional to 35,859.22, 53,789.10 and 12,485.62 is: 18,728.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,859.22 : 53,789.10 = 12,485.62 : x
  2. Step 2: Convert to fraction form
    35,859.22/53,789.10 = 12,485.62/x
  3. Step 3: Cross multiply
    35,859.22x = 53,789.10 × 12,485.62
  4. Step 4: Simplify right side
    35,859.22x = 671,590,262.74
  5. Step 5: Solve for x
    x = 671,590,262.74/35,859.22
  6. Step 6: Final answer
    x = 18,728.52

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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.