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Finding the Fourth Proportional to 7,752.61, 10,700.99 and 7,355.87

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Solution

The fourth proportional to 7,752.61, 10,700.99 and 7,355.87 is: 10,153.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,752.61 : 10,700.99 = 7,355.87 : x
  2. Step 2: Convert to fraction form
    7,752.61/10,700.99 = 7,355.87/x
  3. Step 3: Cross multiply
    7,752.61x = 10,700.99 × 7,355.87
  4. Step 4: Simplify right side
    7,752.61x = 78,715,091.31
  5. Step 5: Solve for x
    x = 78,715,091.31/7,752.61
  6. Step 6: Final answer
    x = 10,153.37

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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.