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Finding the Fourth Proportional to 9,876.99, 14,815.77 and 4,327.47

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Solution

The fourth proportional to 9,876.99, 14,815.77 and 4,327.47 is: 6,491.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,876.99 : 14,815.77 = 4,327.47 : x
  2. Step 2: Convert to fraction form
    9,876.99/14,815.77 = 4,327.47/x
  3. Step 3: Cross multiply
    9,876.99x = 14,815.77 × 4,327.47
  4. Step 4: Simplify right side
    9,876.99x = 64,114,800.20
  5. Step 5: Solve for x
    x = 64,114,800.20/9,876.99
  6. Step 6: Final answer
    x = 6,491.33

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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.