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Finding the Fourth Proportional to 7,758.61, 10,701.01 and 5,372.57

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Solution

The fourth proportional to 7,758.61, 10,701.01 and 5,372.57 is: 7,410.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,758.61 : 10,701.01 = 5,372.57 : x
  2. Step 2: Convert to fraction form
    7,758.61/10,701.01 = 5,372.57/x
  3. Step 3: Cross multiply
    7,758.61x = 10,701.01 × 5,372.57
  4. Step 4: Simplify right side
    7,758.61x = 57,491,925.30
  5. Step 5: Solve for x
    x = 57,491,925.30/7,758.61
  6. Step 6: Final answer
    x = 7,410.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.