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Finding the Fourth Proportional to 51,359.80, 77,039.70 and 16,302.20

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Solution

The fourth proportional to 51,359.80, 77,039.70 and 16,302.20 is: 24,453.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,359.80 : 77,039.70 = 16,302.20 : x
  2. Step 2: Convert to fraction form
    51,359.80/77,039.70 = 16,302.20/x
  3. Step 3: Cross multiply
    51,359.80x = 77,039.70 × 16,302.20
  4. Step 4: Simplify right side
    51,359.80x = 1,255,916,597.34
  5. Step 5: Solve for x
    x = 1,255,916,597.34/51,359.80
  6. Step 6: Final answer
    x = 24,453.30

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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.