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Finding the Fourth Proportional to 5,551.53, 7,645.53 and 5,534.22

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Solution

The fourth proportional to 5,551.53, 7,645.53 and 5,534.22 is: 7,621.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,551.53 : 7,645.53 = 5,534.22 : x
  2. Step 2: Convert to fraction form
    5,551.53/7,645.53 = 5,534.22/x
  3. Step 3: Cross multiply
    5,551.53x = 7,645.53 × 5,534.22
  4. Step 4: Simplify right side
    5,551.53x = 42,312,045.04
  5. Step 5: Solve for x
    x = 42,312,045.04/5,551.53
  6. Step 6: Final answer
    x = 7,621.69

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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.