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Finding the Fourth Proportional to 35,079.69, 48,409.95 and 18,947.00

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Solution

The fourth proportional to 35,079.69, 48,409.95 and 18,947.00 is: 26,146.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,079.69 : 48,409.95 = 18,947.00 : x
  2. Step 2: Convert to fraction form
    35,079.69/48,409.95 = 18,947.00/x
  3. Step 3: Cross multiply
    35,079.69x = 48,409.95 × 18,947.00
  4. Step 4: Simplify right side
    35,079.69x = 917,223,080.60
  5. Step 5: Solve for x
    x = 917,223,080.60/35,079.69
  6. Step 6: Final answer
    x = 26,146.84

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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.