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Finding the Fourth Proportional to 5,610.79, 8,417.40 and 1,715.10

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Solution

The fourth proportional to 5,610.79, 8,417.40 and 1,715.10 is: 2,573.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,610.79 : 8,417.40 = 1,715.10 : x
  2. Step 2: Convert to fraction form
    5,610.79/8,417.40 = 1,715.10/x
  3. Step 3: Cross multiply
    5,610.79x = 8,417.40 × 1,715.10
  4. Step 4: Simplify right side
    5,610.79x = 14,436,682.74
  5. Step 5: Solve for x
    x = 14,436,682.74/5,610.79
  6. Step 6: Final answer
    x = 2,573.02

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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.