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Finding the Fourth Proportional to 9,239.53, 12,750.56 and 5,260.63

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Solution

The fourth proportional to 9,239.53, 12,750.56 and 5,260.63 is: 7,259.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,239.53 : 12,750.56 = 5,260.63 : x
  2. Step 2: Convert to fraction form
    9,239.53/12,750.56 = 5,260.63/x
  3. Step 3: Cross multiply
    9,239.53x = 12,750.56 × 5,260.63
  4. Step 4: Simplify right side
    9,239.53x = 67,075,978.45
  5. Step 5: Solve for x
    x = 67,075,978.45/9,239.53
  6. Step 6: Final answer
    x = 7,259.67

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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.