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Finding the Fourth Proportional to 7,916.06, 10,924.08 and 4,379.12

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Solution

The fourth proportional to 7,916.06, 10,924.08 and 4,379.12 is: 6,043.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,916.06 : 10,924.08 = 4,379.12 : x
  2. Step 2: Convert to fraction form
    7,916.06/10,924.08 = 4,379.12/x
  3. Step 3: Cross multiply
    7,916.06x = 10,924.08 × 4,379.12
  4. Step 4: Simplify right side
    7,916.06x = 47,837,857.21
  5. Step 5: Solve for x
    x = 47,837,857.21/7,916.06
  6. Step 6: Final answer
    x = 6,043.14

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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.