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Finding the Fourth Proportional to 28,575, 39,433.50 and 16,000.02

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Solution

The fourth proportional to 28,575, 39,433.50 and 16,000.02 is: 22,080.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,575 : 39,433.50 = 16,000.02 : x
  2. Step 2: Convert to fraction form
    28,575/39,433.50 = 16,000.02/x
  3. Step 3: Cross multiply
    28,575x = 39,433.50 × 16,000.02
  4. Step 4: Simplify right side
    28,575x = 630,936,788.67
  5. Step 5: Solve for x
    x = 630,936,788.67/28,575
  6. Step 6: Final answer
    x = 22,080.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.