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Finding the Fourth Proportional to 29,369.74, 40,530.64 and 15,941.16

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Solution

The fourth proportional to 29,369.74, 40,530.64 and 15,941.16 is: 21,999.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,369.74 : 40,530.64 = 15,941.16 : x
  2. Step 2: Convert to fraction form
    29,369.74/40,530.64 = 15,941.16/x
  3. Step 3: Cross multiply
    29,369.74x = 40,530.64 × 15,941.16
  4. Step 4: Simplify right side
    29,369.74x = 646,105,417.14
  5. Step 5: Solve for x
    x = 646,105,417.14/29,369.74
  6. Step 6: Final answer
    x = 21,999.02

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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.