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Finding the Fourth Proportional to 15,445, 23,167.70 and 5,056.75

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Solution

The fourth proportional to 15,445, 23,167.70 and 5,056.75 is: 7,585.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,445 : 23,167.70 = 5,056.75 : x
  2. Step 2: Convert to fraction form
    15,445/23,167.70 = 5,056.75/x
  3. Step 3: Cross multiply
    15,445x = 23,167.70 × 5,056.75
  4. Step 4: Simplify right side
    15,445x = 117,153,266.98
  5. Step 5: Solve for x
    x = 117,153,266.98/15,445
  6. Step 6: Final answer
    x = 7,585.19

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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.