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Finding the Fourth Proportional to 37,005.70, 55,509.08 and 12,045.88

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Solution

The fourth proportional to 37,005.70, 55,509.08 and 12,045.88 is: 18,068.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,005.70 : 55,509.08 = 12,045.88 : x
  2. Step 2: Convert to fraction form
    37,005.70/55,509.08 = 12,045.88/x
  3. Step 3: Cross multiply
    37,005.70x = 55,509.08 × 12,045.88
  4. Step 4: Simplify right side
    37,005.70x = 668,655,716.59
  5. Step 5: Solve for x
    x = 668,655,716.59/37,005.70
  6. Step 6: Final answer
    x = 18,068.99

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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.