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Finding the Fourth Proportional to 28,348.94, 42,509.44 and 9,622.14

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Solution

The fourth proportional to 28,348.94, 42,509.44 and 9,622.14 is: 14,428.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,348.94 : 42,509.44 = 9,622.14 : x
  2. Step 2: Convert to fraction form
    28,348.94/42,509.44 = 9,622.14/x
  3. Step 3: Cross multiply
    28,348.94x = 42,509.44 × 9,622.14
  4. Step 4: Simplify right side
    28,348.94x = 409,031,783.00
  5. Step 5: Solve for x
    x = 409,031,783.00/28,348.94
  6. Step 6: Final answer
    x = 14,428.47

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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.