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Finding the Fourth Proportional to 4,653.52, 6,421.08 and 2,790.52

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Solution

The fourth proportional to 4,653.52, 6,421.08 and 2,790.52 is: 3,850.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,653.52 : 6,421.08 = 2,790.52 : x
  2. Step 2: Convert to fraction form
    4,653.52/6,421.08 = 2,790.52/x
  3. Step 3: Cross multiply
    4,653.52x = 6,421.08 × 2,790.52
  4. Step 4: Simplify right side
    4,653.52x = 17,918,152.16
  5. Step 5: Solve for x
    x = 17,918,152.16/4,653.52
  6. Step 6: Final answer
    x = 3,850.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.