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Finding the Fourth Proportional to 28,585.72, 39,448.02 and 16,010.38

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Solution

The fourth proportional to 28,585.72, 39,448.02 and 16,010.38 is: 22,094.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,585.72 : 39,448.02 = 16,010.38 : x
  2. Step 2: Convert to fraction form
    28,585.72/39,448.02 = 16,010.38/x
  3. Step 3: Cross multiply
    28,585.72x = 39,448.02 × 16,010.38
  4. Step 4: Simplify right side
    28,585.72x = 631,577,790.45
  5. Step 5: Solve for x
    x = 631,577,790.45/28,585.72
  6. Step 6: Final answer
    x = 22,094.17

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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.