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Finding the Fourth Proportional to 64,922.70, 97,384.05 and 60,986.10

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Solution

The fourth proportional to 64,922.70, 97,384.05 and 60,986.10 is: 91,479.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,922.70 : 97,384.05 = 60,986.10 : x
  2. Step 2: Convert to fraction form
    64,922.70/97,384.05 = 60,986.10/x
  3. Step 3: Cross multiply
    64,922.70x = 97,384.05 × 60,986.10
  4. Step 4: Simplify right side
    64,922.70x = 5,939,073,411.71
  5. Step 5: Solve for x
    x = 5,939,073,411.71/64,922.70
  6. Step 6: Final answer
    x = 91,479.15

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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.