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Finding the Fourth Proportional to 4,955.76, 7,432.16 and 1,668.16

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Solution

The fourth proportional to 4,955.76, 7,432.16 and 1,668.16 is: 2,501.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,955.76 : 7,432.16 = 1,668.16 : x
  2. Step 2: Convert to fraction form
    4,955.76/7,432.16 = 1,668.16/x
  3. Step 3: Cross multiply
    4,955.76x = 7,432.16 × 1,668.16
  4. Step 4: Simplify right side
    4,955.76x = 12,398,032.03
  5. Step 5: Solve for x
    x = 12,398,032.03/4,955.76
  6. Step 6: Final answer
    x = 2,501.74

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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.