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Finding the Fourth Proportional to 10,672.65, 16,008.98 and 9,615.60

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Solution

The fourth proportional to 10,672.65, 16,008.98 and 9,615.60 is: 14,423.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,672.65 : 16,008.98 = 9,615.60 : x
  2. Step 2: Convert to fraction form
    10,672.65/16,008.98 = 9,615.60/x
  3. Step 3: Cross multiply
    10,672.65x = 16,008.98 × 9,615.60
  4. Step 4: Simplify right side
    10,672.65x = 153,935,900.01
  5. Step 5: Solve for x
    x = 153,935,900.01/10,672.65
  6. Step 6: Final answer
    x = 14,423.40

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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.