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Finding the Fourth Proportional to 30,341.01, 41,870.78 and 16,913.11

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Solution

The fourth proportional to 30,341.01, 41,870.78 and 16,913.11 is: 23,340.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,341.01 : 41,870.78 = 16,913.11 : x
  2. Step 2: Convert to fraction form
    30,341.01/41,870.78 = 16,913.11/x
  3. Step 3: Cross multiply
    30,341.01x = 41,870.78 × 16,913.11
  4. Step 4: Simplify right side
    30,341.01x = 708,165,107.93
  5. Step 5: Solve for x
    x = 708,165,107.93/30,341.01
  6. Step 6: Final answer
    x = 23,340.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.