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Finding the Fourth Proportional to 28,265.90, 39,010.04 and 16,167.51

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Solution

The fourth proportional to 28,265.90, 39,010.04 and 16,167.51 is: 22,312.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,265.90 : 39,010.04 = 16,167.51 : x
  2. Step 2: Convert to fraction form
    28,265.90/39,010.04 = 16,167.51/x
  3. Step 3: Cross multiply
    28,265.90x = 39,010.04 × 16,167.51
  4. Step 4: Simplify right side
    28,265.90x = 630,695,130.96
  5. Step 5: Solve for x
    x = 630,695,130.96/28,265.90
  6. Step 6: Final answer
    x = 22,312.94

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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.