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Finding the Fourth Proportional to 7,167.79, 10,746.10 and 3,417.64

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Solution

The fourth proportional to 7,167.79, 10,746.10 and 3,417.64 is: 5,123.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,167.79 : 10,746.10 = 3,417.64 : x
  2. Step 2: Convert to fraction form
    7,167.79/10,746.10 = 3,417.64/x
  3. Step 3: Cross multiply
    7,167.79x = 10,746.10 × 3,417.64
  4. Step 4: Simplify right side
    7,167.79x = 36,726,301.20
  5. Step 5: Solve for x
    x = 36,726,301.20/7,167.79
  6. Step 6: Final answer
    x = 5,123.80

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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.