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Finding the Fourth Proportional to 17,878.77, 24,675.63 and 9,923.55

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Solution

The fourth proportional to 17,878.77, 24,675.63 and 9,923.55 is: 13,696.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,878.77 : 24,675.63 = 9,923.55 : x
  2. Step 2: Convert to fraction form
    17,878.77/24,675.63 = 9,923.55/x
  3. Step 3: Cross multiply
    17,878.77x = 24,675.63 × 9,923.55
  4. Step 4: Simplify right side
    17,878.77x = 244,869,848.09
  5. Step 5: Solve for x
    x = 244,869,848.09/17,878.77
  6. Step 6: Final answer
    x = 13,696.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.