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Finding the Fourth Proportional to 21,904.17, 32,870.84 and 8,053.17

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Solution

The fourth proportional to 21,904.17, 32,870.84 and 8,053.17 is: 12,085.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,904.17 : 32,870.84 = 8,053.17 : x
  2. Step 2: Convert to fraction form
    21,904.17/32,870.84 = 8,053.17/x
  3. Step 3: Cross multiply
    21,904.17x = 32,870.84 × 8,053.17
  4. Step 4: Simplify right side
    21,904.17x = 264,714,506.58
  5. Step 5: Solve for x
    x = 264,714,506.58/21,904.17
  6. Step 6: Final answer
    x = 12,085.12

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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.