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Finding the Fourth Proportional to 70,619.88, 97,464.08 and 40,811.88

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Solution

The fourth proportional to 70,619.88, 97,464.08 and 40,811.88 is: 56,325.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,619.88 : 97,464.08 = 40,811.88 : x
  2. Step 2: Convert to fraction form
    70,619.88/97,464.08 = 40,811.88/x
  3. Step 3: Cross multiply
    70,619.88x = 97,464.08 × 40,811.88
  4. Step 4: Simplify right side
    70,619.88x = 3,977,692,337.27
  5. Step 5: Solve for x
    x = 3,977,692,337.27/70,619.88
  6. Step 6: Final answer
    x = 56,325.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.