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Finding the Fourth Proportional to 56,633.88, 78,518.01 and 53,484.60

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Solution

The fourth proportional to 56,633.88, 78,518.01 and 53,484.60 is: 74,151.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,633.88 : 78,518.01 = 53,484.60 : x
  2. Step 2: Convert to fraction form
    56,633.88/78,518.01 = 53,484.60/x
  3. Step 3: Cross multiply
    56,633.88x = 78,518.01 × 53,484.60
  4. Step 4: Simplify right side
    56,633.88x = 4,199,504,357.65
  5. Step 5: Solve for x
    x = 4,199,504,357.65/56,633.88
  6. Step 6: Final answer
    x = 74,151.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.