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Finding the Fourth Proportional to 47,353.80, 71,030.70 and 45,166.80

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Solution

The fourth proportional to 47,353.80, 71,030.70 and 45,166.80 is: 67,750.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,353.80 : 71,030.70 = 45,166.80 : x
  2. Step 2: Convert to fraction form
    47,353.80/71,030.70 = 45,166.80/x
  3. Step 3: Cross multiply
    47,353.80x = 71,030.70 × 45,166.80
  4. Step 4: Simplify right side
    47,353.80x = 3,208,229,420.76
  5. Step 5: Solve for x
    x = 3,208,229,420.76/47,353.80
  6. Step 6: Final answer
    x = 67,750.20

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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.