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Finding the Fourth Proportional to 86,273.52, 129,410.27 and 39,526.39

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Solution

The fourth proportional to 86,273.52, 129,410.27 and 39,526.39 is: 59,289.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,273.52 : 129,410.27 = 39,526.39 : x
  2. Step 2: Convert to fraction form
    86,273.52/129,410.27 = 39,526.39/x
  3. Step 3: Cross multiply
    86,273.52x = 129,410.27 × 39,526.39
  4. Step 4: Simplify right side
    86,273.52x = 5,115,120,802.03
  5. Step 5: Solve for x
    x = 5,115,120,802.03/86,273.52
  6. Step 6: Final answer
    x = 59,289.58

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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.