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Finding the Fourth Proportional to 5,599.32, 7,743.78 and 4,918.92

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Solution

The fourth proportional to 5,599.32, 7,743.78 and 4,918.92 is: 6,802.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,599.32 : 7,743.78 = 4,918.92 : x
  2. Step 2: Convert to fraction form
    5,599.32/7,743.78 = 4,918.92/x
  3. Step 3: Cross multiply
    5,599.32x = 7,743.78 × 4,918.92
  4. Step 4: Simplify right side
    5,599.32x = 38,091,034.32
  5. Step 5: Solve for x
    x = 38,091,034.32/5,599.32
  6. Step 6: Final answer
    x = 6,802.80

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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.