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Finding the Fourth Proportional to 19,801.58, 29,702.37 and 6,653.99

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Solution

The fourth proportional to 19,801.58, 29,702.37 and 6,653.99 is: 9,980.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,801.58 : 29,702.37 = 6,653.99 : x
  2. Step 2: Convert to fraction form
    19,801.58/29,702.37 = 6,653.99/x
  3. Step 3: Cross multiply
    19,801.58x = 29,702.37 × 6,653.99
  4. Step 4: Simplify right side
    19,801.58x = 197,639,272.96
  5. Step 5: Solve for x
    x = 197,639,272.96/19,801.58
  6. Step 6: Final answer
    x = 9,980.99

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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.