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Finding the Fourth Proportional to 64,897.44, 97,345.52 and 20,524.20

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Solution

The fourth proportional to 64,897.44, 97,345.52 and 20,524.20 is: 30,786.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,897.44 : 97,345.52 = 20,524.20 : x
  2. Step 2: Convert to fraction form
    64,897.44/97,345.52 = 20,524.20/x
  3. Step 3: Cross multiply
    64,897.44x = 97,345.52 × 20,524.20
  4. Step 4: Simplify right side
    64,897.44x = 1,997,938,921.58
  5. Step 5: Solve for x
    x = 1,997,938,921.58/64,897.44
  6. Step 6: Final answer
    x = 30,786.10

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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.