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Finding the Fourth Proportional to 19,308.50, 26,645.73 and 10,476.50

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Solution

The fourth proportional to 19,308.50, 26,645.73 and 10,476.50 is: 14,457.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,308.50 : 26,645.73 = 10,476.50 : x
  2. Step 2: Convert to fraction form
    19,308.50/26,645.73 = 10,476.50/x
  3. Step 3: Cross multiply
    19,308.50x = 26,645.73 × 10,476.50
  4. Step 4: Simplify right side
    19,308.50x = 279,153,990.35
  5. Step 5: Solve for x
    x = 279,153,990.35/19,308.50
  6. Step 6: Final answer
    x = 14,457.57

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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.