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Finding the Fourth Proportional to 61,008.99, 91,492.07 and 18,301.70

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Solution

The fourth proportional to 61,008.99, 91,492.07 and 18,301.70 is: 27,446.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,008.99 : 91,492.07 = 18,301.70 : x
  2. Step 2: Convert to fraction form
    61,008.99/91,492.07 = 18,301.70/x
  3. Step 3: Cross multiply
    61,008.99x = 91,492.07 × 18,301.70
  4. Step 4: Simplify right side
    61,008.99x = 1,674,459,868.55
  5. Step 5: Solve for x
    x = 1,674,459,868.55/61,008.99
  6. Step 6: Final answer
    x = 27,446.12

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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.