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Finding the Fourth Proportional to 19,073.80, 28,602.60 and 9,216.10

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Solution

The fourth proportional to 19,073.80, 28,602.60 and 9,216.10 is: 13,820.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,073.80 : 28,602.60 = 9,216.10 : x
  2. Step 2: Convert to fraction form
    19,073.80/28,602.60 = 9,216.10/x
  3. Step 3: Cross multiply
    19,073.80x = 28,602.60 × 9,216.10
  4. Step 4: Simplify right side
    19,073.80x = 263,604,421.86
  5. Step 5: Solve for x
    x = 263,604,421.86/19,073.80
  6. Step 6: Final answer
    x = 13,820.24

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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.