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Finding the Fourth Proportional to 40,415.97, 60,529.95 and 39,014.40

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Solution

The fourth proportional to 40,415.97, 60,529.95 and 39,014.40 is: 58,430.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,415.97 : 60,529.95 = 39,014.40 : x
  2. Step 2: Convert to fraction form
    40,415.97/60,529.95 = 39,014.40/x
  3. Step 3: Cross multiply
    40,415.97x = 60,529.95 × 39,014.40
  4. Step 4: Simplify right side
    40,415.97x = 2,361,539,681.28
  5. Step 5: Solve for x
    x = 2,361,539,681.28/40,415.97
  6. Step 6: Final answer
    x = 58,430.85

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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.