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Finding the Fourth Proportional to 11,952, 17,925.60 and 4,161.12

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Solution

The fourth proportional to 11,952, 17,925.60 and 4,161.12 is: 6,240.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,952 : 17,925.60 = 4,161.12 : x
  2. Step 2: Convert to fraction form
    11,952/17,925.60 = 4,161.12/x
  3. Step 3: Cross multiply
    11,952x = 17,925.60 × 4,161.12
  4. Step 4: Simplify right side
    11,952x = 74,590,572.67
  5. Step 5: Solve for x
    x = 74,590,572.67/11,952
  6. Step 6: Final answer
    x = 6,240.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.