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Finding the Fourth Proportional to 39,752.76, 59,627.88 and 18,687.68

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Solution

The fourth proportional to 39,752.76, 59,627.88 and 18,687.68 is: 28,030.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,752.76 : 59,627.88 = 18,687.68 : x
  2. Step 2: Convert to fraction form
    39,752.76/59,627.88 = 18,687.68/x
  3. Step 3: Cross multiply
    39,752.76x = 59,627.88 × 18,687.68
  4. Step 4: Simplify right side
    39,752.76x = 1,114,306,740.52
  5. Step 5: Solve for x
    x = 1,114,306,740.52/39,752.76
  6. Step 6: Final answer
    x = 28,030.93

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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.