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Finding the Fourth Proportional to 35,357.13, 53,060.98 and 12,867.77

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Solution

The fourth proportional to 35,357.13, 53,060.98 and 12,867.77 is: 19,310.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,357.13 : 53,060.98 = 12,867.77 : x
  2. Step 2: Convert to fraction form
    35,357.13/53,060.98 = 12,867.77/x
  3. Step 3: Cross multiply
    35,357.13x = 53,060.98 × 12,867.77
  4. Step 4: Simplify right side
    35,357.13x = 682,776,486.61
  5. Step 5: Solve for x
    x = 682,776,486.61/35,357.13
  6. Step 6: Final answer
    x = 19,310.86

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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.