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Finding the Fourth Proportional to 7,185.59, 9,916.11 and 4,041.77

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Solution

The fourth proportional to 7,185.59, 9,916.11 and 4,041.77 is: 5,577.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,185.59 : 9,916.11 = 4,041.77 : x
  2. Step 2: Convert to fraction form
    7,185.59/9,916.11 = 4,041.77/x
  3. Step 3: Cross multiply
    7,185.59x = 9,916.11 × 4,041.77
  4. Step 4: Simplify right side
    7,185.59x = 40,078,664.32
  5. Step 5: Solve for x
    x = 40,078,664.32/7,185.59
  6. Step 6: Final answer
    x = 5,577.65

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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.