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Finding the Fourth Proportional to 47,975.76, 71,975.84 and 16,810.24

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Solution

The fourth proportional to 47,975.76, 71,975.84 and 16,810.24 is: 25,219.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,975.76 : 71,975.84 = 16,810.24 : x
  2. Step 2: Convert to fraction form
    47,975.76/71,975.84 = 16,810.24/x
  3. Step 3: Cross multiply
    47,975.76x = 71,975.84 × 16,810.24
  4. Step 4: Simplify right side
    47,975.76x = 1,209,931,144.60
  5. Step 5: Solve for x
    x = 1,209,931,144.60/47,975.76
  6. Step 6: Final answer
    x = 25,219.63

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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.