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Finding the Fourth Proportional to 14,595.69, 20,142.07 and 8,308.07

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Solution

The fourth proportional to 14,595.69, 20,142.07 and 8,308.07 is: 11,465.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,595.69 : 20,142.07 = 8,308.07 : x
  2. Step 2: Convert to fraction form
    14,595.69/20,142.07 = 8,308.07/x
  3. Step 3: Cross multiply
    14,595.69x = 20,142.07 × 8,308.07
  4. Step 4: Simplify right side
    14,595.69x = 167,341,626.79
  5. Step 5: Solve for x
    x = 167,341,626.79/14,595.69
  6. Step 6: Final answer
    x = 11,465.14

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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.