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Finding the Fourth Proportional to 4,957.68, 6,841.76 and 2,719.68

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Solution

The fourth proportional to 4,957.68, 6,841.76 and 2,719.68 is: 3,753.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,957.68 : 6,841.76 = 2,719.68 : x
  2. Step 2: Convert to fraction form
    4,957.68/6,841.76 = 2,719.68/x
  3. Step 3: Cross multiply
    4,957.68x = 6,841.76 × 2,719.68
  4. Step 4: Simplify right side
    4,957.68x = 18,607,397.84
  5. Step 5: Solve for x
    x = 18,607,397.84/4,957.68
  6. Step 6: Final answer
    x = 3,753.25

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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.