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Finding the Fourth Proportional to 9,907.30, 13,669.32 and 7,075.54

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Solution

The fourth proportional to 9,907.30, 13,669.32 and 7,075.54 is: 9,762.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,907.30 : 13,669.32 = 7,075.54 : x
  2. Step 2: Convert to fraction form
    9,907.30/13,669.32 = 7,075.54/x
  3. Step 3: Cross multiply
    9,907.30x = 13,669.32 × 7,075.54
  4. Step 4: Simplify right side
    9,907.30x = 96,717,820.43
  5. Step 5: Solve for x
    x = 96,717,820.43/9,907.30
  6. Step 6: Final answer
    x = 9,762.28

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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.