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Finding the Fourth Proportional to 56,911.40, 85,437.30 and 35,851.40

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Solution

The fourth proportional to 56,911.40, 85,437.30 and 35,851.40 is: 53,821.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,911.40 : 85,437.30 = 35,851.40 : x
  2. Step 2: Convert to fraction form
    56,911.40/85,437.30 = 35,851.40/x
  3. Step 3: Cross multiply
    56,911.40x = 85,437.30 × 35,851.40
  4. Step 4: Simplify right side
    56,911.40x = 3,063,046,817.22
  5. Step 5: Solve for x
    x = 3,063,046,817.22/56,911.40
  6. Step 6: Final answer
    x = 53,821.32

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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.