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Finding the Fourth Proportional to 5,798.04, 8,696.40 and 1,638.40

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Solution

The fourth proportional to 5,798.04, 8,696.40 and 1,638.40 is: 2,457.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,798.04 : 8,696.40 = 1,638.40 : x
  2. Step 2: Convert to fraction form
    5,798.04/8,696.40 = 1,638.40/x
  3. Step 3: Cross multiply
    5,798.04x = 8,696.40 × 1,638.40
  4. Step 4: Simplify right side
    5,798.04x = 14,248,181.76
  5. Step 5: Solve for x
    x = 14,248,181.76/5,798.04
  6. Step 6: Final answer
    x = 2,457.41

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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.