Home / 35,688.90-53,534.21-11,996.79

Finding the Fourth Proportional to 35,688.90, 53,534.21 and 11,996.79

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Solution

The fourth proportional to 35,688.90, 53,534.21 and 11,996.79 is: 17,995.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,688.90 : 53,534.21 = 11,996.79 : x
  2. Step 2: Convert to fraction form
    35,688.90/53,534.21 = 11,996.79/x
  3. Step 3: Cross multiply
    35,688.90x = 53,534.21 × 11,996.79
  4. Step 4: Simplify right side
    35,688.90x = 642,238,615.20
  5. Step 5: Solve for x
    x = 642,238,615.20/35,688.90
  6. Step 6: Final answer
    x = 17,995.47

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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.