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Finding the Fourth Proportional to 65,598.94, 98,412.74 and 21,230.18

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Solution

The fourth proportional to 65,598.94, 98,412.74 and 21,230.18 is: 31,849.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,598.94 : 98,412.74 = 21,230.18 : x
  2. Step 2: Convert to fraction form
    65,598.94/98,412.74 = 21,230.18/x
  3. Step 3: Cross multiply
    65,598.94x = 98,412.74 × 21,230.18
  4. Step 4: Simplify right side
    65,598.94x = 2,089,320,034.94
  5. Step 5: Solve for x
    x = 2,089,320,034.94/65,598.94
  6. Step 6: Final answer
    x = 31,849.90

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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.