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Finding the Fourth Proportional to 8,793.12, 12,133.43 and 7,005.15

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Solution

The fourth proportional to 8,793.12, 12,133.43 and 7,005.15 is: 9,666.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,793.12 : 12,133.43 = 7,005.15 : x
  2. Step 2: Convert to fraction form
    8,793.12/12,133.43 = 7,005.15/x
  3. Step 3: Cross multiply
    8,793.12x = 12,133.43 × 7,005.15
  4. Step 4: Simplify right side
    8,793.12x = 84,996,462.14
  5. Step 5: Solve for x
    x = 84,996,462.14/8,793.12
  6. Step 6: Final answer
    x = 9,666.25

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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.