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Finding the Fourth Proportional to 21,798.30, 32,698.26 and 7,006.98

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Solution

The fourth proportional to 21,798.30, 32,698.26 and 7,006.98 is: 10,510.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,798.30 : 32,698.26 = 7,006.98 : x
  2. Step 2: Convert to fraction form
    21,798.30/32,698.26 = 7,006.98/x
  3. Step 3: Cross multiply
    21,798.30x = 32,698.26 × 7,006.98
  4. Step 4: Simplify right side
    21,798.30x = 229,116,053.85
  5. Step 5: Solve for x
    x = 229,116,053.85/21,798.30
  6. Step 6: Final answer
    x = 10,510.73

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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.