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Finding the Fourth Proportional to 52,715.58, 79,073.52 and 19,421.22

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Solution

The fourth proportional to 52,715.58, 79,073.52 and 19,421.22 is: 29,131.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,715.58 : 79,073.52 = 19,421.22 : x
  2. Step 2: Convert to fraction form
    52,715.58/79,073.52 = 19,421.22/x
  3. Step 3: Cross multiply
    52,715.58x = 79,073.52 × 19,421.22
  4. Step 4: Simplify right side
    52,715.58x = 1,535,704,228.09
  5. Step 5: Solve for x
    x = 1,535,704,228.09/52,715.58
  6. Step 6: Final answer
    x = 29,131.89

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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.