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Finding the Fourth Proportional to 7,564.79, 11,359.49 and 7,507.38

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Solution

The fourth proportional to 7,564.79, 11,359.49 and 7,507.38 is: 11,273.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,564.79 : 11,359.49 = 7,507.38 : x
  2. Step 2: Convert to fraction form
    7,564.79/11,359.49 = 7,507.38/x
  3. Step 3: Cross multiply
    7,564.79x = 11,359.49 × 7,507.38
  4. Step 4: Simplify right side
    7,564.79x = 85,280,055.33
  5. Step 5: Solve for x
    x = 85,280,055.33/7,564.79
  6. Step 6: Final answer
    x = 11,273.28

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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.