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Finding the Fourth Proportional to 7,645.59, 10,544.99 and 5,529.06

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Solution

The fourth proportional to 7,645.59, 10,544.99 and 5,529.06 is: 7,625.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,645.59 : 10,544.99 = 5,529.06 : x
  2. Step 2: Convert to fraction form
    7,645.59/10,544.99 = 5,529.06/x
  3. Step 3: Cross multiply
    7,645.59x = 10,544.99 × 5,529.06
  4. Step 4: Simplify right side
    7,645.59x = 58,303,854.76
  5. Step 5: Solve for x
    x = 58,303,854.76/7,645.59
  6. Step 6: Final answer
    x = 7,625.81

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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.