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Finding the Fourth Proportional to 7,045.48, 10,513.09 and 7,004.48

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Solution

The fourth proportional to 7,045.48, 10,513.09 and 7,004.48 is: 10,451.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,045.48 : 10,513.09 = 7,004.48 : x
  2. Step 2: Convert to fraction form
    7,045.48/10,513.09 = 7,004.48/x
  3. Step 3: Cross multiply
    7,045.48x = 10,513.09 × 7,004.48
  4. Step 4: Simplify right side
    7,045.48x = 73,638,684.83
  5. Step 5: Solve for x
    x = 73,638,684.83/7,045.48
  6. Step 6: Final answer
    x = 10,451.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.