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Finding the Fourth Proportional to 7,603.68, 11,407.68 and 5,361.60

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Solution

The fourth proportional to 7,603.68, 11,407.68 and 5,361.60 is: 8,043.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,603.68 : 11,407.68 = 5,361.60 : x
  2. Step 2: Convert to fraction form
    7,603.68/11,407.68 = 5,361.60/x
  3. Step 3: Cross multiply
    7,603.68x = 11,407.68 × 5,361.60
  4. Step 4: Simplify right side
    7,603.68x = 61,163,417.09
  5. Step 5: Solve for x
    x = 61,163,417.09/7,603.68
  6. Step 6: Final answer
    x = 8,043.92

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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.