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Finding the Fourth Proportional to 29,527.40, 40,764.40 and 20,465.93

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Solution

The fourth proportional to 29,527.40, 40,764.40 and 20,465.93 is: 28,254.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,527.40 : 40,764.40 = 20,465.93 : x
  2. Step 2: Convert to fraction form
    29,527.40/40,764.40 = 20,465.93/x
  3. Step 3: Cross multiply
    29,527.40x = 40,764.40 × 20,465.93
  4. Step 4: Simplify right side
    29,527.40x = 834,281,407.64
  5. Step 5: Solve for x
    x = 834,281,407.64/29,527.40
  6. Step 6: Final answer
    x = 28,254.48

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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.