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Finding the Fourth Proportional to 52,492.65, 72,440.28 and 28,619.49

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Solution

The fourth proportional to 52,492.65, 72,440.28 and 28,619.49 is: 39,495.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,492.65 : 72,440.28 = 28,619.49 : x
  2. Step 2: Convert to fraction form
    52,492.65/72,440.28 = 28,619.49/x
  3. Step 3: Cross multiply
    52,492.65x = 72,440.28 × 28,619.49
  4. Step 4: Simplify right side
    52,492.65x = 2,073,203,869.06
  5. Step 5: Solve for x
    x = 2,073,203,869.06/52,492.65
  6. Step 6: Final answer
    x = 39,495.13

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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.