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Finding the Fourth Proportional to 19,235.80, 28,853.70 and 10,941.40

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Solution

The fourth proportional to 19,235.80, 28,853.70 and 10,941.40 is: 16,412.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,235.80 : 28,853.70 = 10,941.40 : x
  2. Step 2: Convert to fraction form
    19,235.80/28,853.70 = 10,941.40/x
  3. Step 3: Cross multiply
    19,235.80x = 28,853.70 × 10,941.40
  4. Step 4: Simplify right side
    19,235.80x = 315,699,873.18
  5. Step 5: Solve for x
    x = 315,699,873.18/19,235.80
  6. Step 6: Final answer
    x = 16,412.10

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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.