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Finding the Fourth Proportional to 37,859.40, 56,795.10 and 12,901.80

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Solution

The fourth proportional to 37,859.40, 56,795.10 and 12,901.80 is: 19,354.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,859.40 : 56,795.10 = 12,901.80 : x
  2. Step 2: Convert to fraction form
    37,859.40/56,795.10 = 12,901.80/x
  3. Step 3: Cross multiply
    37,859.40x = 56,795.10 × 12,901.80
  4. Step 4: Simplify right side
    37,859.40x = 732,759,021.18
  5. Step 5: Solve for x
    x = 732,759,021.18/37,859.40
  6. Step 6: Final answer
    x = 19,354.74

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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.