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Finding the Fourth Proportional to 60,289.68, 90,421.56 and 37,789.50

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Solution

The fourth proportional to 60,289.68, 90,421.56 and 37,789.50 is: 56,676.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,289.68 : 90,421.56 = 37,789.50 : x
  2. Step 2: Convert to fraction form
    60,289.68/90,421.56 = 37,789.50/x
  3. Step 3: Cross multiply
    60,289.68x = 90,421.56 × 37,789.50
  4. Step 4: Simplify right side
    60,289.68x = 3,416,985,541.62
  5. Step 5: Solve for x
    x = 3,416,985,541.62/60,289.68
  6. Step 6: Final answer
    x = 56,676.13

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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.