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Finding the Fourth Proportional to 85,535.52, 128,325.15 and 35,599.02

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Solution

The fourth proportional to 85,535.52, 128,325.15 and 35,599.02 is: 53,407.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,535.52 : 128,325.15 = 35,599.02 : x
  2. Step 2: Convert to fraction form
    85,535.52/128,325.15 = 35,599.02/x
  3. Step 3: Cross multiply
    85,535.52x = 128,325.15 × 35,599.02
  4. Step 4: Simplify right side
    85,535.52x = 4,568,249,581.35
  5. Step 5: Solve for x
    x = 4,568,249,581.35/85,535.52
  6. Step 6: Final answer
    x = 53,407.63

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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.