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Finding the Fourth Proportional to 28,916,659.60, 43,291,008.60 and 28,076,851.60

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Solution

The fourth proportional to 28,916,659.60, 43,291,008.60 and 28,076,851.60 is: 42,033,735.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,916,659.60 : 43,291,008.60 = 28,076,851.60 : x
  2. Step 2: Convert to fraction form
    28,916,659.60/43,291,008.60 = 28,076,851.60/x
  3. Step 3: Cross multiply
    28,916,659.60x = 43,291,008.60 × 28,076,851.60
  4. Step 4: Simplify right side
    28,916,659.60x = 1,215,475,224,076,523.75
  5. Step 5: Solve for x
    x = 1,215,475,224,076,523.75/28,916,659.60
  6. Step 6: Final answer
    x = 42,033,735.60

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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.