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Finding the Fourth Proportional to 32,159.61, 44,381.63 and 18,728.70

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Solution

The fourth proportional to 32,159.61, 44,381.63 and 18,728.70 is: 25,846.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,159.61 : 44,381.63 = 18,728.70 : x
  2. Step 2: Convert to fraction form
    32,159.61/44,381.63 = 18,728.70/x
  3. Step 3: Cross multiply
    32,159.61x = 44,381.63 × 18,728.70
  4. Step 4: Simplify right side
    32,159.61x = 831,210,140.14
  5. Step 5: Solve for x
    x = 831,210,140.14/32,159.61
  6. Step 6: Final answer
    x = 25,846.40

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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.