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Finding the Fourth Proportional to 9,591.90, 13,235.85 and 7,075.38

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Solution

The fourth proportional to 9,591.90, 13,235.85 and 7,075.38 is: 9,763.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,591.90 : 13,235.85 = 7,075.38 : x
  2. Step 2: Convert to fraction form
    9,591.90/13,235.85 = 7,075.38/x
  3. Step 3: Cross multiply
    9,591.90x = 13,235.85 × 7,075.38
  4. Step 4: Simplify right side
    9,591.90x = 93,648,668.37
  5. Step 5: Solve for x
    x = 93,648,668.37/9,591.90
  6. Step 6: Final answer
    x = 9,763.31

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Half scale
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Double scale
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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.