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Finding the Fourth Proportional to 42,039.87, 62,970.87 and 34,000.14

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Solution

The fourth proportional to 42,039.87, 62,970.87 and 34,000.14 is: 50,928.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,039.87 : 62,970.87 = 34,000.14 : x
  2. Step 2: Convert to fraction form
    42,039.87/62,970.87 = 34,000.14/x
  3. Step 3: Cross multiply
    42,039.87x = 62,970.87 × 34,000.14
  4. Step 4: Simplify right side
    42,039.87x = 2,141,018,479.76
  5. Step 5: Solve for x
    x = 2,141,018,479.76/42,039.87
  6. Step 6: Final answer
    x = 50,928.28

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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.