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Finding the Fourth Proportional to 16,668.60, 25,005.60 and 6,281.16

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Solution

The fourth proportional to 16,668.60, 25,005.60 and 6,281.16 is: 9,422.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,668.60 : 25,005.60 = 6,281.16 : x
  2. Step 2: Convert to fraction form
    16,668.60/25,005.60 = 6,281.16/x
  3. Step 3: Cross multiply
    16,668.60x = 25,005.60 × 6,281.16
  4. Step 4: Simplify right side
    16,668.60x = 157,064,174.50
  5. Step 5: Solve for x
    x = 157,064,174.50/16,668.60
  6. Step 6: Final answer
    x = 9,422.76

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1.5x scale

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.