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Finding the Fourth Proportional to 15,755.79, 23,609.06 and 9,900.10

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Solution

The fourth proportional to 15,755.79, 23,609.06 and 9,900.10 is: 14,834.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,755.79 : 23,609.06 = 9,900.10 : x
  2. Step 2: Convert to fraction form
    15,755.79/23,609.06 = 9,900.10/x
  3. Step 3: Cross multiply
    15,755.79x = 23,609.06 × 9,900.10
  4. Step 4: Simplify right side
    15,755.79x = 233,732,020.63
  5. Step 5: Solve for x
    x = 233,732,020.63/15,755.79
  6. Step 6: Final answer
    x = 14,834.67

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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.