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Finding the Fourth Proportional to 9,075.60, 13,606.20 and 4,971.60

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Solution

The fourth proportional to 9,075.60, 13,606.20 and 4,971.60 is: 7,453.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,075.60 : 13,606.20 = 4,971.60 : x
  2. Step 2: Convert to fraction form
    9,075.60/13,606.20 = 4,971.60/x
  3. Step 3: Cross multiply
    9,075.60x = 13,606.20 × 4,971.60
  4. Step 4: Simplify right side
    9,075.60x = 67,644,583.92
  5. Step 5: Solve for x
    x = 67,644,583.92/9,075.60
  6. Step 6: Final answer
    x = 7,453.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.