Home / 65,783.36-98,681.27-18,398.45

Finding the Fourth Proportional to 65,783.36, 98,681.27 and 18,398.45

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Solution

The fourth proportional to 65,783.36, 98,681.27 and 18,398.45 is: 27,599.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,783.36 : 98,681.27 = 18,398.45 : x
  2. Step 2: Convert to fraction form
    65,783.36/98,681.27 = 18,398.45/x
  3. Step 3: Cross multiply
    65,783.36x = 98,681.27 × 18,398.45
  4. Step 4: Simplify right side
    65,783.36x = 1,815,582,566.74
  5. Step 5: Solve for x
    x = 1,815,582,566.74/65,783.36
  6. Step 6: Final answer
    x = 27,599.42

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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.