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Finding the Fourth Proportional to 75,507.93, 113,312.94 and 28,759.59

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Solution

The fourth proportional to 75,507.93, 113,312.94 and 28,759.59 is: 43,158.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,507.93 : 113,312.94 = 28,759.59 : x
  2. Step 2: Convert to fraction form
    75,507.93/113,312.94 = 28,759.59/x
  3. Step 3: Cross multiply
    75,507.93x = 113,312.94 × 28,759.59
  4. Step 4: Simplify right side
    75,507.93x = 3,258,833,696.09
  5. Step 5: Solve for x
    x = 3,258,833,696.09/75,507.93
  6. Step 6: Final answer
    x = 43,158.83

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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.