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Finding the Fourth Proportional to 8,925.99, 12,317.64 and 4,947.06

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Solution

The fourth proportional to 8,925.99, 12,317.64 and 4,947.06 is: 6,826.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,925.99 : 12,317.64 = 4,947.06 : x
  2. Step 2: Convert to fraction form
    8,925.99/12,317.64 = 4,947.06/x
  3. Step 3: Cross multiply
    8,925.99x = 12,317.64 × 4,947.06
  4. Step 4: Simplify right side
    8,925.99x = 60,936,104.14
  5. Step 5: Solve for x
    x = 60,936,104.14/8,925.99
  6. Step 6: Final answer
    x = 6,826.82

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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.