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Finding the Fourth Proportional to 82,390.65, 113,699.22 and 44,664.90

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Solution

The fourth proportional to 82,390.65, 113,699.22 and 44,664.90 is: 61,637.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,390.65 : 113,699.22 = 44,664.90 : x
  2. Step 2: Convert to fraction form
    82,390.65/113,699.22 = 44,664.90/x
  3. Step 3: Cross multiply
    82,390.65x = 113,699.22 × 44,664.90
  4. Step 4: Simplify right side
    82,390.65x = 5,078,364,291.38
  5. Step 5: Solve for x
    x = 5,078,364,291.38/82,390.65
  6. Step 6: Final answer
    x = 61,637.63

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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.