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Finding the Fourth Proportional to 76,661.61, 114,992.90 and 26,741.51

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Solution

The fourth proportional to 76,661.61, 114,992.90 and 26,741.51 is: 40,112.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,661.61 : 114,992.90 = 26,741.51 : x
  2. Step 2: Convert to fraction form
    76,661.61/114,992.90 = 26,741.51/x
  3. Step 3: Cross multiply
    76,661.61x = 114,992.90 × 26,741.51
  4. Step 4: Simplify right side
    76,661.61x = 3,075,083,785.28
  5. Step 5: Solve for x
    x = 3,075,083,785.28/76,661.61
  6. Step 6: Final answer
    x = 40,112.43

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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.