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Finding the Fourth Proportional to 64,785.94, 97,191.16 and 25,340.56

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Solution

The fourth proportional to 64,785.94, 97,191.16 and 25,340.56 is: 38,015.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,785.94 : 97,191.16 = 25,340.56 : x
  2. Step 2: Convert to fraction form
    64,785.94/97,191.16 = 25,340.56/x
  3. Step 3: Cross multiply
    64,785.94x = 97,191.16 × 25,340.56
  4. Step 4: Simplify right side
    64,785.94x = 2,462,878,421.45
  5. Step 5: Solve for x
    x = 2,462,878,421.45/64,785.94
  6. Step 6: Final answer
    x = 38,015.63

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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.