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Finding the Fourth Proportional to 8,713.37, 12,021.80 and 4,935.93

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Solution

The fourth proportional to 8,713.37, 12,021.80 and 4,935.93 is: 6,810.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,713.37 : 12,021.80 = 4,935.93 : x
  2. Step 2: Convert to fraction form
    8,713.37/12,021.80 = 4,935.93/x
  3. Step 3: Cross multiply
    8,713.37x = 12,021.80 × 4,935.93
  4. Step 4: Simplify right side
    8,713.37x = 59,338,738.59
  5. Step 5: Solve for x
    x = 59,338,738.59/8,713.37
  6. Step 6: Final answer
    x = 6,810.08

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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.