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Finding the Fourth Proportional to 42,504.80, 63,754.72 and 16,212.20

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Solution

The fourth proportional to 42,504.80, 63,754.72 and 16,212.20 is: 24,317.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,504.80 : 63,754.72 = 16,212.20 : x
  2. Step 2: Convert to fraction form
    42,504.80/63,754.72 = 16,212.20/x
  3. Step 3: Cross multiply
    42,504.80x = 63,754.72 × 16,212.20
  4. Step 4: Simplify right side
    42,504.80x = 1,033,604,271.58
  5. Step 5: Solve for x
    x = 1,033,604,271.58/42,504.80
  6. Step 6: Final answer
    x = 24,317.35

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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.