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Finding the Fourth Proportional to 15,452.65, 21,316.44 and 9,404.74

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Solution

The fourth proportional to 15,452.65, 21,316.44 and 9,404.74 is: 12,973.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,452.65 : 21,316.44 = 9,404.74 : x
  2. Step 2: Convert to fraction form
    15,452.65/21,316.44 = 9,404.74/x
  3. Step 3: Cross multiply
    15,452.65x = 21,316.44 × 9,404.74
  4. Step 4: Simplify right side
    15,452.65x = 200,475,575.93
  5. Step 5: Solve for x
    x = 200,475,575.93/15,452.65
  6. Step 6: Final answer
    x = 12,973.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.