Home / 35,166.50-52,755.76-12,980.00

Finding the Fourth Proportional to 35,166.50, 52,755.76 and 12,980.00

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Solution

The fourth proportional to 35,166.50, 52,755.76 and 12,980.00 is: 19,472.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,166.50 : 52,755.76 = 12,980.00 : x
  2. Step 2: Convert to fraction form
    35,166.50/52,755.76 = 12,980.00/x
  3. Step 3: Cross multiply
    35,166.50x = 52,755.76 × 12,980.00
  4. Step 4: Simplify right side
    35,166.50x = 684,769,543.15
  5. Step 5: Solve for x
    x = 684,769,543.15/35,166.50
  6. Step 6: Final answer
    x = 19,472.21

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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.