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Finding the Fourth Proportional to 40,482.63, 60,721.56 and 15,521.67

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Solution

The fourth proportional to 40,482.63, 60,721.56 and 15,521.67 is: 23,281.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,482.63 : 60,721.56 = 15,521.67 : x
  2. Step 2: Convert to fraction form
    40,482.63/60,721.56 = 15,521.67/x
  3. Step 3: Cross multiply
    40,482.63x = 60,721.56 × 15,521.67
  4. Step 4: Simplify right side
    40,482.63x = 942,500,016.21
  5. Step 5: Solve for x
    x = 942,500,016.21/40,482.63
  6. Step 6: Final answer
    x = 23,281.59

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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.