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Finding the Fourth Proportional to 60,576.30, 90,864.45 and 56,688.30

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Solution

The fourth proportional to 60,576.30, 90,864.45 and 56,688.30 is: 85,032.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,576.30 : 90,864.45 = 56,688.30 : x
  2. Step 2: Convert to fraction form
    60,576.30/90,864.45 = 56,688.30/x
  3. Step 3: Cross multiply
    60,576.30x = 90,864.45 × 56,688.30
  4. Step 4: Simplify right side
    60,576.30x = 5,150,951,200.94
  5. Step 5: Solve for x
    x = 5,150,951,200.94/60,576.30
  6. Step 6: Final answer
    x = 85,032.45

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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.