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Finding the Fourth Proportional to 64,751.13, 97,136.28 and 20,363.13

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Solution

The fourth proportional to 64,751.13, 97,136.28 and 20,363.13 is: 30,547.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,751.13 : 97,136.28 = 20,363.13 : x
  2. Step 2: Convert to fraction form
    64,751.13/97,136.28 = 20,363.13/x
  3. Step 3: Cross multiply
    64,751.13x = 97,136.28 × 20,363.13
  4. Step 4: Simplify right side
    64,751.13x = 1,977,998,697.36
  5. Step 5: Solve for x
    x = 1,977,998,697.36/64,751.13
  6. Step 6: Final answer
    x = 30,547.71

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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.