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Finding the Fourth Proportional to 15,107.61, 22,653.63 and 6,780.49

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Solution

The fourth proportional to 15,107.61, 22,653.63 and 6,780.49 is: 10,167.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,107.61 : 22,653.63 = 6,780.49 : x
  2. Step 2: Convert to fraction form
    15,107.61/22,653.63 = 6,780.49/x
  3. Step 3: Cross multiply
    15,107.61x = 22,653.63 × 6,780.49
  4. Step 4: Simplify right side
    15,107.61x = 153,602,629.62
  5. Step 5: Solve for x
    x = 153,602,629.62/15,107.61
  6. Step 6: Final answer
    x = 10,167.24

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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.