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Finding the Fourth Proportional to 53,980.70, 74,566.04 and 48,950.60

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Solution

The fourth proportional to 53,980.70, 74,566.04 and 48,950.60 is: 67,617.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,980.70 : 74,566.04 = 48,950.60 : x
  2. Step 2: Convert to fraction form
    53,980.70/74,566.04 = 48,950.60/x
  3. Step 3: Cross multiply
    53,980.70x = 74,566.04 × 48,950.60
  4. Step 4: Simplify right side
    53,980.70x = 3,650,051,780.04
  5. Step 5: Solve for x
    x = 3,650,051,780.04/53,980.70
  6. Step 6: Final answer
    x = 67,617.72

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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.