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Finding the Fourth Proportional to 65,967.40, 99,008.70 and 52,786.60

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Solution

The fourth proportional to 65,967.40, 99,008.70 and 52,786.60 is: 79,225.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,967.40 : 99,008.70 = 52,786.60 : x
  2. Step 2: Convert to fraction form
    65,967.40/99,008.70 = 52,786.60/x
  3. Step 3: Cross multiply
    65,967.40x = 99,008.70 × 52,786.60
  4. Step 4: Simplify right side
    65,967.40x = 5,226,332,643.42
  5. Step 5: Solve for x
    x = 5,226,332,643.42/65,967.40
  6. Step 6: Final answer
    x = 79,225.99

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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.