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Finding the Fourth Proportional to 5,720.90, 8,562.29 and 4,326.54

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Solution

The fourth proportional to 5,720.90, 8,562.29 and 4,326.54 is: 6,475.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,720.90 : 8,562.29 = 4,326.54 : x
  2. Step 2: Convert to fraction form
    5,720.90/8,562.29 = 4,326.54/x
  3. Step 3: Cross multiply
    5,720.90x = 8,562.29 × 4,326.54
  4. Step 4: Simplify right side
    5,720.90x = 37,045,068.54
  5. Step 5: Solve for x
    x = 37,045,068.54/5,720.90
  6. Step 6: Final answer
    x = 6,475.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.