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Finding the Fourth Proportional to 30,621.61, 45,932.42 and 9,845.11

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Solution

The fourth proportional to 30,621.61, 45,932.42 and 9,845.11 is: 14,767.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,621.61 : 45,932.42 = 9,845.11 : x
  2. Step 2: Convert to fraction form
    30,621.61/45,932.42 = 9,845.11/x
  3. Step 3: Cross multiply
    30,621.61x = 45,932.42 × 9,845.11
  4. Step 4: Simplify right side
    30,621.61x = 452,209,678.24
  5. Step 5: Solve for x
    x = 452,209,678.24/30,621.61
  6. Step 6: Final answer
    x = 14,767.67

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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.