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Finding the Fourth Proportional to 10,620.16, 15,850.67 and 10,444.98

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Solution

The fourth proportional to 10,620.16, 15,850.67 and 10,444.98 is: 15,589.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,620.16 : 15,850.67 = 10,444.98 : x
  2. Step 2: Convert to fraction form
    10,620.16/15,850.67 = 10,444.98/x
  3. Step 3: Cross multiply
    10,620.16x = 15,850.67 × 10,444.98
  4. Step 4: Simplify right side
    10,620.16x = 165,559,931.14
  5. Step 5: Solve for x
    x = 165,559,931.14/10,620.16
  6. Step 6: Final answer
    x = 15,589.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.