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Finding the Fourth Proportional to 59,435.40, 89,157.15 and 18,905.70

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Solution

The fourth proportional to 59,435.40, 89,157.15 and 18,905.70 is: 28,359.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,435.40 : 89,157.15 = 18,905.70 : x
  2. Step 2: Convert to fraction form
    59,435.40/89,157.15 = 18,905.70/x
  3. Step 3: Cross multiply
    59,435.40x = 89,157.15 × 18,905.70
  4. Step 4: Simplify right side
    59,435.40x = 1,685,578,330.76
  5. Step 5: Solve for x
    x = 1,685,578,330.76/59,435.40
  6. Step 6: Final answer
    x = 28,359.84

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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.