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Finding the Fourth Proportional to 42,458.80, 63,688.81 and 16,164.99

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Solution

The fourth proportional to 42,458.80, 63,688.81 and 16,164.99 is: 24,247.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,458.80 : 63,688.81 = 16,164.99 : x
  2. Step 2: Convert to fraction form
    42,458.80/63,688.81 = 16,164.99/x
  3. Step 3: Cross multiply
    42,458.80x = 63,688.81 × 16,164.99
  4. Step 4: Simplify right side
    42,458.80x = 1,029,528,577.49
  5. Step 5: Solve for x
    x = 1,029,528,577.49/42,458.80
  6. Step 6: Final answer
    x = 24,247.71

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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.