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Finding the Fourth Proportional to 7,133.96, 10,701.12 and 2,974.88

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Solution

The fourth proportional to 7,133.96, 10,701.12 and 2,974.88 is: 4,462.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,133.96 : 10,701.12 = 2,974.88 : x
  2. Step 2: Convert to fraction form
    7,133.96/10,701.12 = 2,974.88/x
  3. Step 3: Cross multiply
    7,133.96x = 10,701.12 × 2,974.88
  4. Step 4: Simplify right side
    7,133.96x = 31,834,547.87
  5. Step 5: Solve for x
    x = 31,834,547.87/7,133.96
  6. Step 6: Final answer
    x = 4,462.40

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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.