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Finding the Fourth Proportional to 51,861.60, 77,804.76 and 16,801.20

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Solution

The fourth proportional to 51,861.60, 77,804.76 and 16,801.20 is: 25,205.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,861.60 : 77,804.76 = 16,801.20 : x
  2. Step 2: Convert to fraction form
    51,861.60/77,804.76 = 16,801.20/x
  3. Step 3: Cross multiply
    51,861.60x = 77,804.76 × 16,801.20
  4. Step 4: Simplify right side
    51,861.60x = 1,307,213,333.71
  5. Step 5: Solve for x
    x = 1,307,213,333.71/51,861.60
  6. Step 6: Final answer
    x = 25,205.80

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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.