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Finding the Fourth Proportional to 64,687.98, 97,036.08 and 20,316.48

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Solution

The fourth proportional to 64,687.98, 97,036.08 and 20,316.48 is: 30,476.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,687.98 : 97,036.08 = 20,316.48 : x
  2. Step 2: Convert to fraction form
    64,687.98/97,036.08 = 20,316.48/x
  3. Step 3: Cross multiply
    64,687.98x = 97,036.08 × 20,316.48
  4. Step 4: Simplify right side
    64,687.98x = 1,971,431,578.60
  5. Step 5: Solve for x
    x = 1,971,431,578.60/64,687.98
  6. Step 6: Final answer
    x = 30,476.01

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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.