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Finding the Fourth Proportional to 15,765.10, 23,651.10 and 4,672.65

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Solution

The fourth proportional to 15,765.10, 23,651.10 and 4,672.65 is: 7,010.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,765.10 : 23,651.10 = 4,672.65 : x
  2. Step 2: Convert to fraction form
    15,765.10/23,651.10 = 4,672.65/x
  3. Step 3: Cross multiply
    15,765.10x = 23,651.10 × 4,672.65
  4. Step 4: Simplify right side
    15,765.10x = 110,513,312.42
  5. Step 5: Solve for x
    x = 110,513,312.42/15,765.10
  6. Step 6: Final answer
    x = 7,010.00

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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.