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Finding the Fourth Proportional to 29,462.16, 40,635.72 and 20,510.16

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Solution

The fourth proportional to 29,462.16, 40,635.72 and 20,510.16 is: 28,288.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,462.16 : 40,635.72 = 20,510.16 : x
  2. Step 2: Convert to fraction form
    29,462.16/40,635.72 = 20,510.16/x
  3. Step 3: Cross multiply
    29,462.16x = 40,635.72 × 20,510.16
  4. Step 4: Simplify right side
    29,462.16x = 833,445,118.92
  5. Step 5: Solve for x
    x = 833,445,118.92/29,462.16
  6. Step 6: Final answer
    x = 28,288.66

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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.