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Finding the Fourth Proportional to 44,092.81, 66,140.16 and 12,928.06

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Solution

The fourth proportional to 44,092.81, 66,140.16 and 12,928.06 is: 19,392.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,092.81 : 66,140.16 = 12,928.06 : x
  2. Step 2: Convert to fraction form
    44,092.81/66,140.16 = 12,928.06/x
  3. Step 3: Cross multiply
    44,092.81x = 66,140.16 × 12,928.06
  4. Step 4: Simplify right side
    44,092.81x = 855,063,956.89
  5. Step 5: Solve for x
    x = 855,063,956.89/44,092.81
  6. Step 6: Final answer
    x = 19,392.37

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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.