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Finding the Fourth Proportional to 12,590.89, 17,375.07 and 6,925.64

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Solution

The fourth proportional to 12,590.89, 17,375.07 and 6,925.64 is: 9,557.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,590.89 : 17,375.07 = 6,925.64 : x
  2. Step 2: Convert to fraction form
    12,590.89/17,375.07 = 6,925.64/x
  3. Step 3: Cross multiply
    12,590.89x = 17,375.07 × 6,925.64
  4. Step 4: Simplify right side
    12,590.89x = 120,333,360.46
  5. Step 5: Solve for x
    x = 120,333,360.46/12,590.89
  6. Step 6: Final answer
    x = 9,557.17

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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.