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Finding the Fourth Proportional to 47,950.04, 71,925 and 12,889.70

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Solution

The fourth proportional to 47,950.04, 71,925 and 12,889.70 is: 19,334.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,950.04 : 71,925 = 12,889.70 : x
  2. Step 2: Convert to fraction form
    47,950.04/71,925 = 12,889.70/x
  3. Step 3: Cross multiply
    47,950.04x = 71,925 × 12,889.70
  4. Step 4: Simplify right side
    47,950.04x = 927,091,672.50
  5. Step 5: Solve for x
    x = 927,091,672.50/47,950.04
  6. Step 6: Final answer
    x = 19,334.53

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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.