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Finding the Fourth Proportional to 37,423.75, 56,135.67 and 9,721.75

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Solution

The fourth proportional to 37,423.75, 56,135.67 and 9,721.75 is: 14,582.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,423.75 : 56,135.67 = 9,721.75 : x
  2. Step 2: Convert to fraction form
    37,423.75/56,135.67 = 9,721.75/x
  3. Step 3: Cross multiply
    37,423.75x = 56,135.67 × 9,721.75
  4. Step 4: Simplify right side
    37,423.75x = 545,736,949.82
  5. Step 5: Solve for x
    x = 545,736,949.82/37,423.75
  6. Step 6: Final answer
    x = 14,582.64

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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.