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Finding the Fourth Proportional to 8,807.63, 12,154.43 and 4,828.65

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Solution

The fourth proportional to 8,807.63, 12,154.43 and 4,828.65 is: 6,663.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,807.63 : 12,154.43 = 4,828.65 : x
  2. Step 2: Convert to fraction form
    8,807.63/12,154.43 = 4,828.65/x
  3. Step 3: Cross multiply
    8,807.63x = 12,154.43 × 4,828.65
  4. Step 4: Simplify right side
    8,807.63x = 58,689,464.28
  5. Step 5: Solve for x
    x = 58,689,464.28/8,807.63
  6. Step 6: Final answer
    x = 6,663.48

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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.