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Finding the Fourth Proportional to 19,482.76, 26,894.73 and 12,418.48

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Solution

The fourth proportional to 19,482.76, 26,894.73 and 12,418.48 is: 17,142.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,482.76 : 26,894.73 = 12,418.48 : x
  2. Step 2: Convert to fraction form
    19,482.76/26,894.73 = 12,418.48/x
  3. Step 3: Cross multiply
    19,482.76x = 26,894.73 × 12,418.48
  4. Step 4: Simplify right side
    19,482.76x = 333,991,666.61
  5. Step 5: Solve for x
    x = 333,991,666.61/19,482.76
  6. Step 6: Final answer
    x = 17,142.93

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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.