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Finding the Fourth Proportional to 51,651.58, 77,281.86 and 30,602.92

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Solution

The fourth proportional to 51,651.58, 77,281.86 and 30,602.92 is: 45,788.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,651.58 : 77,281.86 = 30,602.92 : x
  2. Step 2: Convert to fraction form
    51,651.58/77,281.86 = 30,602.92/x
  3. Step 3: Cross multiply
    51,651.58x = 77,281.86 × 30,602.92
  4. Step 4: Simplify right side
    51,651.58x = 2,365,050,579.03
  5. Step 5: Solve for x
    x = 2,365,050,579.03/51,651.58
  6. Step 6: Final answer
    x = 45,788.54

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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.