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Finding the Fourth Proportional to 71,462.63, 98,663.60 and 45,980.84

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Solution

The fourth proportional to 71,462.63, 98,663.60 and 45,980.84 is: 63,482.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,462.63 : 98,663.60 = 45,980.84 : x
  2. Step 2: Convert to fraction form
    71,462.63/98,663.60 = 45,980.84/x
  3. Step 3: Cross multiply
    71,462.63x = 98,663.60 × 45,980.84
  4. Step 4: Simplify right side
    71,462.63x = 4,536,635,205.42
  5. Step 5: Solve for x
    x = 4,536,635,205.42/71,462.63
  6. Step 6: Final answer
    x = 63,482.62

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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.