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Finding the Fourth Proportional to 60,516.32, 90,759.04 and 42,912.32

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Solution

The fourth proportional to 60,516.32, 90,759.04 and 42,912.32 is: 64,357.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,516.32 : 90,759.04 = 42,912.32 : x
  2. Step 2: Convert to fraction form
    60,516.32/90,759.04 = 42,912.32/x
  3. Step 3: Cross multiply
    60,516.32x = 90,759.04 × 42,912.32
  4. Step 4: Simplify right side
    60,516.32x = 3,894,680,746.64
  5. Step 5: Solve for x
    x = 3,894,680,746.64/60,516.32
  6. Step 6: Final answer
    x = 64,357.53

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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.