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Finding the Fourth Proportional to 53,122.60, 79,802.70 and 44,374.60

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Solution

The fourth proportional to 53,122.60, 79,802.70 and 44,374.60 is: 66,661.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,122.60 : 79,802.70 = 44,374.60 : x
  2. Step 2: Convert to fraction form
    53,122.60/79,802.70 = 44,374.60/x
  3. Step 3: Cross multiply
    53,122.60x = 79,802.70 × 44,374.60
  4. Step 4: Simplify right side
    53,122.60x = 3,541,212,891.42
  5. Step 5: Solve for x
    x = 3,541,212,891.42/53,122.60
  6. Step 6: Final answer
    x = 66,661.14

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1.5x scale

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.