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Finding the Fourth Proportional to 8,559.35, 11,805.40 and 7,366.32

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Solution

The fourth proportional to 8,559.35, 11,805.40 and 7,366.32 is: 10,159.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,559.35 : 11,805.40 = 7,366.32 : x
  2. Step 2: Convert to fraction form
    8,559.35/11,805.40 = 7,366.32/x
  3. Step 3: Cross multiply
    8,559.35x = 11,805.40 × 7,366.32
  4. Step 4: Simplify right side
    8,559.35x = 86,962,354.13
  5. Step 5: Solve for x
    x = 86,962,354.13/8,559.35
  6. Step 6: Final answer
    x = 10,159.93

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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.