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Finding the Fourth Proportional to 35,620.60, 53,430.90 and 34,103.80

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Solution

The fourth proportional to 35,620.60, 53,430.90 and 34,103.80 is: 51,155.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,620.60 : 53,430.90 = 34,103.80 : x
  2. Step 2: Convert to fraction form
    35,620.60/53,430.90 = 34,103.80/x
  3. Step 3: Cross multiply
    35,620.60x = 53,430.90 × 34,103.80
  4. Step 4: Simplify right side
    35,620.60x = 1,822,196,727.42
  5. Step 5: Solve for x
    x = 1,822,196,727.42/35,620.60
  6. Step 6: Final answer
    x = 51,155.70

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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.