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Finding the Fourth Proportional to 45,783.40, 68,675.10 and 16,191.40

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Solution

The fourth proportional to 45,783.40, 68,675.10 and 16,191.40 is: 24,287.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,783.40 : 68,675.10 = 16,191.40 : x
  2. Step 2: Convert to fraction form
    45,783.40/68,675.10 = 16,191.40/x
  3. Step 3: Cross multiply
    45,783.40x = 68,675.10 × 16,191.40
  4. Step 4: Simplify right side
    45,783.40x = 1,111,946,014.14
  5. Step 5: Solve for x
    x = 1,111,946,014.14/45,783.40
  6. Step 6: Final answer
    x = 24,287.10

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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.