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Finding the Fourth Proportional to 28,292.60, 42,444.98 and 9,571.74

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Solution

The fourth proportional to 28,292.60, 42,444.98 and 9,571.74 is: 14,359.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,292.60 : 42,444.98 = 9,571.74 : x
  2. Step 2: Convert to fraction form
    28,292.60/42,444.98 = 9,571.74/x
  3. Step 3: Cross multiply
    28,292.60x = 42,444.98 × 9,571.74
  4. Step 4: Simplify right side
    28,292.60x = 406,272,265.01
  5. Step 5: Solve for x
    x = 406,272,265.01/28,292.60
  6. Step 6: Final answer
    x = 14,359.67

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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.