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Finding the Fourth Proportional to 52,267.99, 72,129.91 and 28,394.69

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Solution

The fourth proportional to 52,267.99, 72,129.91 and 28,394.69 is: 39,184.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,267.99 : 72,129.91 = 28,394.69 : x
  2. Step 2: Convert to fraction form
    52,267.99/72,129.91 = 28,394.69/x
  3. Step 3: Cross multiply
    52,267.99x = 72,129.91 × 28,394.69
  4. Step 4: Simplify right side
    52,267.99x = 2,048,106,270.17
  5. Step 5: Solve for x
    x = 2,048,106,270.17/52,267.99
  6. Step 6: Final answer
    x = 39,184.71

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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.