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Finding the Fourth Proportional to 9,666.60, 13,341.42 and 7,013.04

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Solution

The fourth proportional to 9,666.60, 13,341.42 and 7,013.04 is: 9,679.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,666.60 : 13,341.42 = 7,013.04 : x
  2. Step 2: Convert to fraction form
    9,666.60/13,341.42 = 7,013.04/x
  3. Step 3: Cross multiply
    9,666.60x = 13,341.42 × 7,013.04
  4. Step 4: Simplify right side
    9,666.60x = 93,563,912.12
  5. Step 5: Solve for x
    x = 93,563,912.12/9,666.60
  6. Step 6: Final answer
    x = 9,679.09

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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.