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Finding the Fourth Proportional to 39,858.90, 59,792.70 and 14,910.90

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Solution

The fourth proportional to 39,858.90, 59,792.70 and 14,910.90 is: 22,367.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,858.90 : 59,792.70 = 14,910.90 : x
  2. Step 2: Convert to fraction form
    39,858.90/59,792.70 = 14,910.90/x
  3. Step 3: Cross multiply
    39,858.90x = 59,792.70 × 14,910.90
  4. Step 4: Simplify right side
    39,858.90x = 891,562,970.43
  5. Step 5: Solve for x
    x = 891,562,970.43/39,858.90
  6. Step 6: Final answer
    x = 22,367.98

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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.