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Finding the Fourth Proportional to 56,349.44, 77,763.44 and 30,856.88

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Solution

The fourth proportional to 56,349.44, 77,763.44 and 30,856.88 is: 42,583.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,349.44 : 77,763.44 = 30,856.88 : x
  2. Step 2: Convert to fraction form
    56,349.44/77,763.44 = 30,856.88/x
  3. Step 3: Cross multiply
    56,349.44x = 77,763.44 × 30,856.88
  4. Step 4: Simplify right side
    56,349.44x = 2,399,537,136.47
  5. Step 5: Solve for x
    x = 2,399,537,136.47/56,349.44
  6. Step 6: Final answer
    x = 42,583.16

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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.