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Finding the Fourth Proportional to 39,740.70, 59,643.45 and 38,444.70

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Solution

The fourth proportional to 39,740.70, 59,643.45 and 38,444.70 is: 57,698.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,740.70 : 59,643.45 = 38,444.70 : x
  2. Step 2: Convert to fraction form
    39,740.70/59,643.45 = 38,444.70/x
  3. Step 3: Cross multiply
    39,740.70x = 59,643.45 × 38,444.70
  4. Step 4: Simplify right side
    39,740.70x = 2,292,974,542.22
  5. Step 5: Solve for x
    x = 2,292,974,542.22/39,740.70
  6. Step 6: Final answer
    x = 57,698.39

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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.