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Finding the Fourth Proportional to 76,595.46, 105,627.52 and 51,102.86

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Solution

The fourth proportional to 76,595.46, 105,627.52 and 51,102.86 is: 70,472.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,595.46 : 105,627.52 = 51,102.86 : x
  2. Step 2: Convert to fraction form
    76,595.46/105,627.52 = 51,102.86/x
  3. Step 3: Cross multiply
    76,595.46x = 105,627.52 × 51,102.86
  4. Step 4: Simplify right side
    76,595.46x = 5,397,868,111.19
  5. Step 5: Solve for x
    x = 5,397,868,111.19/76,595.46
  6. Step 6: Final answer
    x = 70,472.43

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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.