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Finding the Fourth Proportional to 32,485.68, 48,689.28 and 15,820.74

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Solution

The fourth proportional to 32,485.68, 48,689.28 and 15,820.74 is: 23,712.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,485.68 : 48,689.28 = 15,820.74 : x
  2. Step 2: Convert to fraction form
    32,485.68/48,689.28 = 15,820.74/x
  3. Step 3: Cross multiply
    32,485.68x = 48,689.28 × 15,820.74
  4. Step 4: Simplify right side
    32,485.68x = 770,300,439.67
  5. Step 5: Solve for x
    x = 770,300,439.67/32,485.68
  6. Step 6: Final answer
    x = 23,712.00

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1.5x scale

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.