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Finding the Fourth Proportional to 48,534.60, 66,978.74 and 27,313.80

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Solution

The fourth proportional to 48,534.60, 66,978.74 and 27,313.80 is: 37,693.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,534.60 : 66,978.74 = 27,313.80 : x
  2. Step 2: Convert to fraction form
    48,534.60/66,978.74 = 27,313.80/x
  3. Step 3: Cross multiply
    48,534.60x = 66,978.74 × 27,313.80
  4. Step 4: Simplify right side
    48,534.60x = 1,829,443,908.61
  5. Step 5: Solve for x
    x = 1,829,443,908.61/48,534.60
  6. Step 6: Final answer
    x = 37,693.60

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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.