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Finding the Fourth Proportional to 8,662.23, 13,002.53 and 7,038.38

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Solution

The fourth proportional to 8,662.23, 13,002.53 and 7,038.38 is: 10,565.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,662.23 : 13,002.53 = 7,038.38 : x
  2. Step 2: Convert to fraction form
    8,662.23/13,002.53 = 7,038.38/x
  3. Step 3: Cross multiply
    8,662.23x = 13,002.53 × 7,038.38
  4. Step 4: Simplify right side
    8,662.23x = 91,516,747.10
  5. Step 5: Solve for x
    x = 91,516,747.10/8,662.23
  6. Step 6: Final answer
    x = 10,565.03

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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.