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Finding the Fourth Proportional to 56,483.60, 77,939.28 and 33,817.16

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Solution

The fourth proportional to 56,483.60, 77,939.28 and 33,817.16 is: 46,662.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,483.60 : 77,939.28 = 33,817.16 : x
  2. Step 2: Convert to fraction form
    56,483.60/77,939.28 = 33,817.16/x
  3. Step 3: Cross multiply
    56,483.60x = 77,939.28 × 33,817.16
  4. Step 4: Simplify right side
    56,483.60x = 2,635,685,102.04
  5. Step 5: Solve for x
    x = 2,635,685,102.04/56,483.60
  6. Step 6: Final answer
    x = 46,662.84

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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.