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Finding the Fourth Proportional to 70,851.12, 106,287.12 and 37,562.64

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Solution

The fourth proportional to 70,851.12, 106,287.12 and 37,562.64 is: 56,349.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,851.12 : 106,287.12 = 37,562.64 : x
  2. Step 2: Convert to fraction form
    70,851.12/106,287.12 = 37,562.64/x
  3. Step 3: Cross multiply
    70,851.12x = 106,287.12 × 37,562.64
  4. Step 4: Simplify right side
    70,851.12x = 3,992,424,825.20
  5. Step 5: Solve for x
    x = 3,992,424,825.20/70,851.12
  6. Step 6: Final answer
    x = 56,349.49

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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.