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Finding the Fourth Proportional to 62,860.03, 86,787.80 and 39,021.73

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Solution

The fourth proportional to 62,860.03, 86,787.80 and 39,021.73 is: 53,875.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,860.03 : 86,787.80 = 39,021.73 : x
  2. Step 2: Convert to fraction form
    62,860.03/86,787.80 = 39,021.73/x
  3. Step 3: Cross multiply
    62,860.03x = 86,787.80 × 39,021.73
  4. Step 4: Simplify right side
    62,860.03x = 3,386,609,903.79
  5. Step 5: Solve for x
    x = 3,386,609,903.79/62,860.03
  6. Step 6: Final answer
    x = 53,875.41

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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.