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Finding the Fourth Proportional to 51,357.80, 77,036.70 and 16,300.20

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Solution

The fourth proportional to 51,357.80, 77,036.70 and 16,300.20 is: 24,450.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,357.80 : 77,036.70 = 16,300.20 : x
  2. Step 2: Convert to fraction form
    51,357.80/77,036.70 = 16,300.20/x
  3. Step 3: Cross multiply
    51,357.80x = 77,036.70 × 16,300.20
  4. Step 4: Simplify right side
    51,357.80x = 1,255,713,617.34
  5. Step 5: Solve for x
    x = 1,255,713,617.34/51,357.80
  6. Step 6: Final answer
    x = 24,450.30

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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.