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Finding the Fourth Proportional to 76,343.80, 114,515.70 and 32,020.60

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Solution

The fourth proportional to 76,343.80, 114,515.70 and 32,020.60 is: 48,030.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,343.80 : 114,515.70 = 32,020.60 : x
  2. Step 2: Convert to fraction form
    76,343.80/114,515.70 = 32,020.60/x
  3. Step 3: Cross multiply
    76,343.80x = 114,515.70 × 32,020.60
  4. Step 4: Simplify right side
    76,343.80x = 3,666,861,423.42
  5. Step 5: Solve for x
    x = 3,666,861,423.42/76,343.80
  6. Step 6: Final answer
    x = 48,030.90

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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.