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Finding the Fourth Proportional to 12,590.88, 17,375.79 and 6,925.33

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Solution

The fourth proportional to 12,590.88, 17,375.79 and 6,925.33 is: 9,557.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,590.88 : 17,375.79 = 6,925.33 : x
  2. Step 2: Convert to fraction form
    12,590.88/17,375.79 = 6,925.33/x
  3. Step 3: Cross multiply
    12,590.88x = 17,375.79 × 6,925.33
  4. Step 4: Simplify right side
    12,590.88x = 120,333,079.76
  5. Step 5: Solve for x
    x = 120,333,079.76/12,590.88
  6. Step 6: Final answer
    x = 9,557.16

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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.