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Finding the Fourth Proportional to 56,442.69, 84,668.65 and 28,348.30

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Solution

The fourth proportional to 56,442.69, 84,668.65 and 28,348.30 is: 42,524.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,442.69 : 84,668.65 = 28,348.30 : x
  2. Step 2: Convert to fraction form
    56,442.69/84,668.65 = 28,348.30/x
  3. Step 3: Cross multiply
    56,442.69x = 84,668.65 × 28,348.30
  4. Step 4: Simplify right side
    56,442.69x = 2,400,212,290.80
  5. Step 5: Solve for x
    x = 2,400,212,290.80/56,442.69
  6. Step 6: Final answer
    x = 42,524.77

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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.