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Finding the Fourth Proportional to 9,690.04, 14,532.40 and 2,668.40

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Solution

The fourth proportional to 9,690.04, 14,532.40 and 2,668.40 is: 4,001.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,690.04 : 14,532.40 = 2,668.40 : x
  2. Step 2: Convert to fraction form
    9,690.04/14,532.40 = 2,668.40/x
  3. Step 3: Cross multiply
    9,690.04x = 14,532.40 × 2,668.40
  4. Step 4: Simplify right side
    9,690.04x = 38,778,242.82
  5. Step 5: Solve for x
    x = 38,778,242.82/9,690.04
  6. Step 6: Final answer
    x = 4,001.87

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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.