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Finding the Fourth Proportional to 28,842.48, 39,802.48 and 16,267.12

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Solution

The fourth proportional to 28,842.48, 39,802.48 and 16,267.12 is: 22,448.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,842.48 : 39,802.48 = 16,267.12 : x
  2. Step 2: Convert to fraction form
    28,842.48/39,802.48 = 16,267.12/x
  3. Step 3: Cross multiply
    28,842.48x = 39,802.48 × 16,267.12
  4. Step 4: Simplify right side
    28,842.48x = 647,471,718.46
  5. Step 5: Solve for x
    x = 647,471,718.46/28,842.48
  6. Step 6: Final answer
    x = 22,448.55

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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.