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Finding the Fourth Proportional to 12,995.80, 19,482.02 and 4,673.86

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Solution

The fourth proportional to 12,995.80, 19,482.02 and 4,673.86 is: 7,006.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,995.80 : 19,482.02 = 4,673.86 : x
  2. Step 2: Convert to fraction form
    12,995.80/19,482.02 = 4,673.86/x
  3. Step 3: Cross multiply
    12,995.80x = 19,482.02 × 4,673.86
  4. Step 4: Simplify right side
    12,995.80x = 91,056,234.00
  5. Step 5: Solve for x
    x = 91,056,234.00/12,995.80
  6. Step 6: Final answer
    x = 7,006.59

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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.