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Finding the Fourth Proportional to 11,598.40, 16,010.40 and 7,412.80

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Solution

The fourth proportional to 11,598.40, 16,010.40 and 7,412.80 is: 10,232.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,598.40 : 16,010.40 = 7,412.80 : x
  2. Step 2: Convert to fraction form
    11,598.40/16,010.40 = 7,412.80/x
  3. Step 3: Cross multiply
    11,598.40x = 16,010.40 × 7,412.80
  4. Step 4: Simplify right side
    11,598.40x = 118,681,893.12
  5. Step 5: Solve for x
    x = 118,681,893.12/11,598.40
  6. Step 6: Final answer
    x = 10,232.61

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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.