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Finding the Fourth Proportional to 10,798.88, 14,907.44 and 7,614.77

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Solution

The fourth proportional to 10,798.88, 14,907.44 and 7,614.77 is: 10,511.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,798.88 : 14,907.44 = 7,614.77 : x
  2. Step 2: Convert to fraction form
    10,798.88/14,907.44 = 7,614.77/x
  3. Step 3: Cross multiply
    10,798.88x = 14,907.44 × 7,614.77
  4. Step 4: Simplify right side
    10,798.88x = 113,516,671.39
  5. Step 5: Solve for x
    x = 113,516,671.39/10,798.88
  6. Step 6: Final answer
    x = 10,511.90

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Double scale
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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.