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Finding the Fourth Proportional to 86,060.68, 118,763.50 and 47,820.07

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Solution

The fourth proportional to 86,060.68, 118,763.50 and 47,820.07 is: 65,991.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,060.68 : 118,763.50 = 47,820.07 : x
  2. Step 2: Convert to fraction form
    86,060.68/118,763.50 = 47,820.07/x
  3. Step 3: Cross multiply
    86,060.68x = 118,763.50 × 47,820.07
  4. Step 4: Simplify right side
    86,060.68x = 5,679,278,883.45
  5. Step 5: Solve for x
    x = 5,679,278,883.45/86,060.68
  6. Step 6: Final answer
    x = 65,991.56

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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.