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Finding the Fourth Proportional to 7,210.71, 9,951.48 and 4,377.43

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Solution

The fourth proportional to 7,210.71, 9,951.48 and 4,377.43 is: 6,041.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,210.71 : 9,951.48 = 4,377.43 : x
  2. Step 2: Convert to fraction form
    7,210.71/9,951.48 = 4,377.43/x
  3. Step 3: Cross multiply
    7,210.71x = 9,951.48 × 4,377.43
  4. Step 4: Simplify right side
    7,210.71x = 43,561,907.10
  5. Step 5: Solve for x
    x = 43,561,907.10/7,210.71
  6. Step 6: Final answer
    x = 6,041.28

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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.