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Finding the Fourth Proportional to 5,445.74, 7,510.02 and 3,555.20

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Solution

The fourth proportional to 5,445.74, 7,510.02 and 3,555.20 is: 4,902.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,445.74 : 7,510.02 = 3,555.20 : x
  2. Step 2: Convert to fraction form
    5,445.74/7,510.02 = 3,555.20/x
  3. Step 3: Cross multiply
    5,445.74x = 7,510.02 × 3,555.20
  4. Step 4: Simplify right side
    5,445.74x = 26,699,623.10
  5. Step 5: Solve for x
    x = 26,699,623.10/5,445.74
  6. Step 6: Final answer
    x = 4,902.85

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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.