Home / 71,017.65-98,004.26-39,186.54

Finding the Fourth Proportional to 71,017.65, 98,004.26 and 39,186.54

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Solution

The fourth proportional to 71,017.65, 98,004.26 and 39,186.54 is: 54,077.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,017.65 : 98,004.26 = 39,186.54 : x
  2. Step 2: Convert to fraction form
    71,017.65/98,004.26 = 39,186.54/x
  3. Step 3: Cross multiply
    71,017.65x = 98,004.26 × 39,186.54
  4. Step 4: Simplify right side
    71,017.65x = 3,840,447,952.63
  5. Step 5: Solve for x
    x = 3,840,447,952.63/71,017.65
  6. Step 6: Final answer
    x = 54,077.37

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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.