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Finding the Fourth Proportional to 5,547.66, 7,655.13 and 3,190.56

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Solution

The fourth proportional to 5,547.66, 7,655.13 and 3,190.56 is: 4,402.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,547.66 : 7,655.13 = 3,190.56 : x
  2. Step 2: Convert to fraction form
    5,547.66/7,655.13 = 3,190.56/x
  3. Step 3: Cross multiply
    5,547.66x = 7,655.13 × 3,190.56
  4. Step 4: Simplify right side
    5,547.66x = 24,424,151.57
  5. Step 5: Solve for x
    x = 24,424,151.57/5,547.66
  6. Step 6: Final answer
    x = 4,402.60

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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.