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Finding the Fourth Proportional to 40,941.68, 61,411.80 and 11,356.16

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Solution

The fourth proportional to 40,941.68, 61,411.80 and 11,356.16 is: 17,034.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,941.68 : 61,411.80 = 11,356.16 : x
  2. Step 2: Convert to fraction form
    40,941.68/61,411.80 = 11,356.16/x
  3. Step 3: Cross multiply
    40,941.68x = 61,411.80 × 11,356.16
  4. Step 4: Simplify right side
    40,941.68x = 697,402,226.69
  5. Step 5: Solve for x
    x = 697,402,226.69/40,941.68
  6. Step 6: Final answer
    x = 17,034.04

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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.