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Finding the Fourth Proportional to 21,689.98, 32,525.79 and 6,894.93

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Solution

The fourth proportional to 21,689.98, 32,525.79 and 6,894.93 is: 10,339.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,689.98 : 32,525.79 = 6,894.93 : x
  2. Step 2: Convert to fraction form
    21,689.98/32,525.79 = 6,894.93/x
  3. Step 3: Cross multiply
    21,689.98x = 32,525.79 × 6,894.93
  4. Step 4: Simplify right side
    21,689.98x = 224,263,045.24
  5. Step 5: Solve for x
    x = 224,263,045.24/21,689.98
  6. Step 6: Final answer
    x = 10,339.48

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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.