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Finding the Fourth Proportional to 35,390.88, 53,078.28 and 10,432.62

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Solution

The fourth proportional to 35,390.88, 53,078.28 and 10,432.62 is: 15,646.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,390.88 : 53,078.28 = 10,432.62 : x
  2. Step 2: Convert to fraction form
    35,390.88/53,078.28 = 10,432.62/x
  3. Step 3: Cross multiply
    35,390.88x = 53,078.28 × 10,432.62
  4. Step 4: Simplify right side
    35,390.88x = 553,745,525.49
  5. Step 5: Solve for x
    x = 553,745,525.49/35,390.88
  6. Step 6: Final answer
    x = 15,646.56

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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.