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Finding the Fourth Proportional to 60,401.15, 90,603.62 and 28,814.64

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Solution

The fourth proportional to 60,401.15, 90,603.62 and 28,814.64 is: 43,222.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,401.15 : 90,603.62 = 28,814.64 : x
  2. Step 2: Convert to fraction form
    60,401.15/90,603.62 = 28,814.64/x
  3. Step 3: Cross multiply
    60,401.15x = 90,603.62 × 28,814.64
  4. Step 4: Simplify right side
    60,401.15x = 2,610,710,548.92
  5. Step 5: Solve for x
    x = 2,610,710,548.92/60,401.15
  6. Step 6: Final answer
    x = 43,222.87

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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.