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Finding the Fourth Proportional to 7,113.59, 10,671.20 and 2,953.05

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Solution

The fourth proportional to 7,113.59, 10,671.20 and 2,953.05 is: 4,429.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,113.59 : 10,671.20 = 2,953.05 : x
  2. Step 2: Convert to fraction form
    7,113.59/10,671.20 = 2,953.05/x
  3. Step 3: Cross multiply
    7,113.59x = 10,671.20 × 2,953.05
  4. Step 4: Simplify right side
    7,113.59x = 31,512,572.39
  5. Step 5: Solve for x
    x = 31,512,572.39/7,113.59
  6. Step 6: Final answer
    x = 4,429.91

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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.