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Finding the Fourth Proportional to 8,560.91, 11,810.53 and 5,203.19

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Solution

The fourth proportional to 8,560.91, 11,810.53 and 5,203.19 is: 7,178.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,560.91 : 11,810.53 = 5,203.19 : x
  2. Step 2: Convert to fraction form
    8,560.91/11,810.53 = 5,203.19/x
  3. Step 3: Cross multiply
    8,560.91x = 11,810.53 × 5,203.19
  4. Step 4: Simplify right side
    8,560.91x = 61,452,431.59
  5. Step 5: Solve for x
    x = 61,452,431.59/8,560.91
  6. Step 6: Final answer
    x = 7,178.26

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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.