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Finding the Fourth Proportional to 83,663.45, 125,482.11 and 27,503.16

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Solution

The fourth proportional to 83,663.45, 125,482.11 and 27,503.16 is: 41,250.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,663.45 : 125,482.11 = 27,503.16 : x
  2. Step 2: Convert to fraction form
    83,663.45/125,482.11 = 27,503.16/x
  3. Step 3: Cross multiply
    83,663.45x = 125,482.11 × 27,503.16
  4. Step 4: Simplify right side
    83,663.45x = 3,451,154,548.47
  5. Step 5: Solve for x
    x = 3,451,154,548.47/83,663.45
  6. Step 6: Final answer
    x = 41,250.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.