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Finding the Fourth Proportional to 19,506.96, 26,919.60 and 10,554.48

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Solution

The fourth proportional to 19,506.96, 26,919.60 and 10,554.48 is: 14,565.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,506.96 : 26,919.60 = 10,554.48 : x
  2. Step 2: Convert to fraction form
    19,506.96/26,919.60 = 10,554.48/x
  3. Step 3: Cross multiply
    19,506.96x = 26,919.60 × 10,554.48
  4. Step 4: Simplify right side
    19,506.96x = 284,122,379.81
  5. Step 5: Solve for x
    x = 284,122,379.81/19,506.96
  6. Step 6: Final answer
    x = 14,565.18

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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.