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Finding the Fourth Proportional to 34,719.68, 52,068.76 and 12,530.18

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Solution

The fourth proportional to 34,719.68, 52,068.76 and 12,530.18 is: 18,791.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,719.68 : 52,068.76 = 12,530.18 : x
  2. Step 2: Convert to fraction form
    34,719.68/52,068.76 = 12,530.18/x
  3. Step 3: Cross multiply
    34,719.68x = 52,068.76 × 12,530.18
  4. Step 4: Simplify right side
    34,719.68x = 652,430,690.50
  5. Step 5: Solve for x
    x = 652,430,690.50/34,719.68
  6. Step 6: Final answer
    x = 18,791.38

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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.