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Finding the Fourth Proportional to 42,323.94, 63,515.07 and 14,621.94

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Solution

The fourth proportional to 42,323.94, 63,515.07 and 14,621.94 is: 21,942.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,323.94 : 63,515.07 = 14,621.94 : x
  2. Step 2: Convert to fraction form
    42,323.94/63,515.07 = 14,621.94/x
  3. Step 3: Cross multiply
    42,323.94x = 63,515.07 × 14,621.94
  4. Step 4: Simplify right side
    42,323.94x = 928,713,542.64
  5. Step 5: Solve for x
    x = 928,713,542.64/42,323.94
  6. Step 6: Final answer
    x = 21,942.98

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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.