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Finding the Fourth Proportional to 14,709.96, 20,300.18 and 9,048.03

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Solution

The fourth proportional to 14,709.96, 20,300.18 and 9,048.03 is: 12,486.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,709.96 : 20,300.18 = 9,048.03 : x
  2. Step 2: Convert to fraction form
    14,709.96/20,300.18 = 9,048.03/x
  3. Step 3: Cross multiply
    14,709.96x = 20,300.18 × 9,048.03
  4. Step 4: Simplify right side
    14,709.96x = 183,676,637.65
  5. Step 5: Solve for x
    x = 183,676,637.65/14,709.96
  6. Step 6: Final answer
    x = 12,486.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.