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Finding the Fourth Proportional to 85,596.85, 128,325.70 and 35,714.12

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Solution

The fourth proportional to 85,596.85, 128,325.70 and 35,714.12 is: 53,542.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,596.85 : 128,325.70 = 35,714.12 : x
  2. Step 2: Convert to fraction form
    85,596.85/128,325.70 = 35,714.12/x
  3. Step 3: Cross multiply
    85,596.85x = 128,325.70 × 35,714.12
  4. Step 4: Simplify right side
    85,596.85x = 4,583,038,851.90
  5. Step 5: Solve for x
    x = 4,583,038,851.90/85,596.85
  6. Step 6: Final answer
    x = 53,542.14

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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.