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Finding the Fourth Proportional to 9,133.76, 13,699.52 and 2,893.60

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Solution

The fourth proportional to 9,133.76, 13,699.52 and 2,893.60 is: 4,340.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,133.76 : 13,699.52 = 2,893.60 : x
  2. Step 2: Convert to fraction form
    9,133.76/13,699.52 = 2,893.60/x
  3. Step 3: Cross multiply
    9,133.76x = 13,699.52 × 2,893.60
  4. Step 4: Simplify right side
    9,133.76x = 39,640,931.07
  5. Step 5: Solve for x
    x = 39,640,931.07/9,133.76
  6. Step 6: Final answer
    x = 4,340.05

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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.