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Finding the Fourth Proportional to 14,101.08, 19,458.42 and 7,813.32

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Solution

The fourth proportional to 14,101.08, 19,458.42 and 7,813.32 is: 10,781.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,101.08 : 19,458.42 = 7,813.32 : x
  2. Step 2: Convert to fraction form
    14,101.08/19,458.42 = 7,813.32/x
  3. Step 3: Cross multiply
    14,101.08x = 19,458.42 × 7,813.32
  4. Step 4: Simplify right side
    14,101.08x = 152,034,862.15
  5. Step 5: Solve for x
    x = 152,034,862.15/14,101.08
  6. Step 6: Final answer
    x = 10,781.79

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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.