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Finding the Fourth Proportional to 5,547.81, 7,645.46 and 3,973.17

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Solution

The fourth proportional to 5,547.81, 7,645.46 and 3,973.17 is: 5,475.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,547.81 : 7,645.46 = 3,973.17 : x
  2. Step 2: Convert to fraction form
    5,547.81/7,645.46 = 3,973.17/x
  3. Step 3: Cross multiply
    5,547.81x = 7,645.46 × 3,973.17
  4. Step 4: Simplify right side
    5,547.81x = 30,376,692.44
  5. Step 5: Solve for x
    x = 30,376,692.44/5,547.81
  6. Step 6: Final answer
    x = 5,475.44

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Double scale
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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.