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Finding the Fourth Proportional to 42,996.48, 64,482.48 and 16,695.60

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Solution

The fourth proportional to 42,996.48, 64,482.48 and 16,695.60 is: 25,038.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,996.48 : 64,482.48 = 16,695.60 : x
  2. Step 2: Convert to fraction form
    42,996.48/64,482.48 = 16,695.60/x
  3. Step 3: Cross multiply
    42,996.48x = 64,482.48 × 16,695.60
  4. Step 4: Simplify right side
    42,996.48x = 1,076,573,693.09
  5. Step 5: Solve for x
    x = 1,076,573,693.09/42,996.48
  6. Step 6: Final answer
    x = 25,038.65

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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.