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Finding the Fourth Proportional to 15,341.90, 23,008.80 and 4,811.90

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Solution

The fourth proportional to 15,341.90, 23,008.80 and 4,811.90 is: 7,216.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,341.90 : 23,008.80 = 4,811.90 : x
  2. Step 2: Convert to fraction form
    15,341.90/23,008.80 = 4,811.90/x
  3. Step 3: Cross multiply
    15,341.90x = 23,008.80 × 4,811.90
  4. Step 4: Simplify right side
    15,341.90x = 110,716,044.72
  5. Step 5: Solve for x
    x = 110,716,044.72/15,341.90
  6. Step 6: Final answer
    x = 7,216.58

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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.