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Finding the Fourth Proportional to 25,011.92, 37,479 and 9,421.04

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Solution

The fourth proportional to 25,011.92, 37,479 and 9,421.04 is: 14,116.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,011.92 : 37,479 = 9,421.04 : x
  2. Step 2: Convert to fraction form
    25,011.92/37,479 = 9,421.04/x
  3. Step 3: Cross multiply
    25,011.92x = 37,479 × 9,421.04
  4. Step 4: Simplify right side
    25,011.92x = 353,091,158.16
  5. Step 5: Solve for x
    x = 353,091,158.16/25,011.92
  6. Step 6: Final answer
    x = 14,116.92

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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.