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Finding the Fourth Proportional to 85,598.33, 128,327.90 and 35,715.59

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Solution

The fourth proportional to 85,598.33, 128,327.90 and 35,715.59 is: 53,544.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,598.33 : 128,327.90 = 35,715.59 : x
  2. Step 2: Convert to fraction form
    85,598.33/128,327.90 = 35,715.59/x
  3. Step 3: Cross multiply
    85,598.33x = 128,327.90 × 35,715.59
  4. Step 4: Simplify right side
    85,598.33x = 4,583,306,020.32
  5. Step 5: Solve for x
    x = 4,583,306,020.32/85,598.33
  6. Step 6: Final answer
    x = 53,544.34

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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.