Home / 39,781.16-59,663.34-11,693.59

Finding the Fourth Proportional to 39,781.16, 59,663.34 and 11,693.59

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Solution

The fourth proportional to 39,781.16, 59,663.34 and 11,693.59 is: 17,537.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,781.16 : 59,663.34 = 11,693.59 : x
  2. Step 2: Convert to fraction form
    39,781.16/59,663.34 = 11,693.59/x
  3. Step 3: Cross multiply
    39,781.16x = 59,663.34 × 11,693.59
  4. Step 4: Simplify right side
    39,781.16x = 697,678,635.99
  5. Step 5: Solve for x
    x = 697,678,635.99/39,781.16
  6. Step 6: Final answer
    x = 17,537.92

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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.