Home / 42,833.22-64,242.09-11,661.18

Finding the Fourth Proportional to 42,833.22, 64,242.09 and 11,661.18

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Solution

The fourth proportional to 42,833.22, 64,242.09 and 11,661.18 is: 17,489.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,833.22 : 64,242.09 = 11,661.18 : x
  2. Step 2: Convert to fraction form
    42,833.22/64,242.09 = 11,661.18/x
  3. Step 3: Cross multiply
    42,833.22x = 64,242.09 × 11,661.18
  4. Step 4: Simplify right side
    42,833.22x = 749,138,575.07
  5. Step 5: Solve for x
    x = 749,138,575.07/42,833.22
  6. Step 6: Final answer
    x = 17,489.66

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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.