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Finding the Fourth Proportional to 64,842.60, 97,251.90 and 18,085.80

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Solution

The fourth proportional to 64,842.60, 97,251.90 and 18,085.80 is: 27,125.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,842.60 : 97,251.90 = 18,085.80 : x
  2. Step 2: Convert to fraction form
    64,842.60/97,251.90 = 18,085.80/x
  3. Step 3: Cross multiply
    64,842.60x = 97,251.90 × 18,085.80
  4. Step 4: Simplify right side
    64,842.60x = 1,758,878,413.02
  5. Step 5: Solve for x
    x = 1,758,878,413.02/64,842.60
  6. Step 6: Final answer
    x = 27,125.35

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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.