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Finding the Fourth Proportional to 56,973.44, 78,578.52 and 53,153.76

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Solution

The fourth proportional to 56,973.44, 78,578.52 and 53,153.76 is: 73,310.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,973.44 : 78,578.52 = 53,153.76 : x
  2. Step 2: Convert to fraction form
    56,973.44/78,578.52 = 53,153.76/x
  3. Step 3: Cross multiply
    56,973.44x = 78,578.52 × 53,153.76
  4. Step 4: Simplify right side
    56,973.44x = 4,176,743,793.24
  5. Step 5: Solve for x
    x = 4,176,743,793.24/56,973.44
  6. Step 6: Final answer
    x = 73,310.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.