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Finding the Fourth Proportional to 59,698.88, 81,860.56 and 58,143.68

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Solution

The fourth proportional to 59,698.88, 81,860.56 and 58,143.68 is: 79,728.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,698.88 : 81,860.56 = 58,143.68 : x
  2. Step 2: Convert to fraction form
    59,698.88/81,860.56 = 58,143.68/x
  3. Step 3: Cross multiply
    59,698.88x = 81,860.56 × 58,143.68
  4. Step 4: Simplify right side
    59,698.88x = 4,759,674,205.26
  5. Step 5: Solve for x
    x = 4,759,674,205.26/59,698.88
  6. Step 6: Final answer
    x = 79,728.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.