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Finding the Fourth Proportional to 12,998.95, 19,502.94 and 4,233.80

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Solution

The fourth proportional to 12,998.95, 19,502.94 and 4,233.80 is: 6,352.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,998.95 : 19,502.94 = 4,233.80 : x
  2. Step 2: Convert to fraction form
    12,998.95/19,502.94 = 4,233.80/x
  3. Step 3: Cross multiply
    12,998.95x = 19,502.94 × 4,233.80
  4. Step 4: Simplify right side
    12,998.95x = 82,571,547.37
  5. Step 5: Solve for x
    x = 82,571,547.37/12,998.95
  6. Step 6: Final answer
    x = 6,352.17

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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.