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Finding the Fourth Proportional to 44,637.60, 66,859.20 and 39,712.80

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Solution

The fourth proportional to 44,637.60, 66,859.20 and 39,712.80 is: 59,482.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,637.60 : 66,859.20 = 39,712.80 : x
  2. Step 2: Convert to fraction form
    44,637.60/66,859.20 = 39,712.80/x
  3. Step 3: Cross multiply
    44,637.60x = 66,859.20 × 39,712.80
  4. Step 4: Simplify right side
    44,637.60x = 2,655,166,037.76
  5. Step 5: Solve for x
    x = 2,655,166,037.76/44,637.60
  6. Step 6: Final answer
    x = 59,482.72

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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.