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Finding the Fourth Proportional to 35,443.40, 53,165.10 and 30,835.40

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Solution

The fourth proportional to 35,443.40, 53,165.10 and 30,835.40 is: 46,253.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,443.40 : 53,165.10 = 30,835.40 : x
  2. Step 2: Convert to fraction form
    35,443.40/53,165.10 = 30,835.40/x
  3. Step 3: Cross multiply
    35,443.40x = 53,165.10 × 30,835.40
  4. Step 4: Simplify right side
    35,443.40x = 1,639,367,124.54
  5. Step 5: Solve for x
    x = 1,639,367,124.54/35,443.40
  6. Step 6: Final answer
    x = 46,253.10

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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.