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Finding the Fourth Proportional to 35,905.61, 53,883.02 and 12,532.05

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Solution

The fourth proportional to 35,905.61, 53,883.02 and 12,532.05 is: 18,806.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,905.61 : 53,883.02 = 12,532.05 : x
  2. Step 2: Convert to fraction form
    35,905.61/53,883.02 = 12,532.05/x
  3. Step 3: Cross multiply
    35,905.61x = 53,883.02 × 12,532.05
  4. Step 4: Simplify right side
    35,905.61x = 675,264,732.12
  5. Step 5: Solve for x
    x = 675,264,732.12/35,905.61
  6. Step 6: Final answer
    x = 18,806.66

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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.