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Finding the Fourth Proportional to 39,666.80, 59,500.20 and 16,281.20

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Solution

The fourth proportional to 39,666.80, 59,500.20 and 16,281.20 is: 24,421.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,666.80 : 59,500.20 = 16,281.20 : x
  2. Step 2: Convert to fraction form
    39,666.80/59,500.20 = 16,281.20/x
  3. Step 3: Cross multiply
    39,666.80x = 59,500.20 × 16,281.20
  4. Step 4: Simplify right side
    39,666.80x = 968,734,656.24
  5. Step 5: Solve for x
    x = 968,734,656.24/39,666.80
  6. Step 6: Final answer
    x = 24,421.80

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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.