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Finding the Fourth Proportional to 21,686.52, 32,529.72 and 6,104.12

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Solution

The fourth proportional to 21,686.52, 32,529.72 and 6,104.12 is: 9,156.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,686.52 : 32,529.72 = 6,104.12 : x
  2. Step 2: Convert to fraction form
    21,686.52/32,529.72 = 6,104.12/x
  3. Step 3: Cross multiply
    21,686.52x = 32,529.72 × 6,104.12
  4. Step 4: Simplify right side
    21,686.52x = 198,565,314.45
  5. Step 5: Solve for x
    x = 198,565,314.45/21,686.52
  6. Step 6: Final answer
    x = 9,156.16

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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.