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Finding the Fourth Proportional to 15,668.16, 21,621.69 and 8,594.52

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Solution

The fourth proportional to 15,668.16, 21,621.69 and 8,594.52 is: 11,860.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,668.16 : 21,621.69 = 8,594.52 : x
  2. Step 2: Convert to fraction form
    15,668.16/21,621.69 = 8,594.52/x
  3. Step 3: Cross multiply
    15,668.16x = 21,621.69 × 8,594.52
  4. Step 4: Simplify right side
    15,668.16x = 185,828,047.14
  5. Step 5: Solve for x
    x = 185,828,047.14/15,668.16
  6. Step 6: Final answer
    x = 11,860.23

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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.