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Finding the Fourth Proportional to 65,000.93, 97,491.45 and 20,621.91

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Solution

The fourth proportional to 65,000.93, 97,491.45 and 20,621.91 is: 30,929.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,000.93 : 97,491.45 = 20,621.91 : x
  2. Step 2: Convert to fraction form
    65,000.93/97,491.45 = 20,621.91/x
  3. Step 3: Cross multiply
    65,000.93x = 97,491.45 × 20,621.91
  4. Step 4: Simplify right side
    65,000.93x = 2,010,459,907.67
  5. Step 5: Solve for x
    x = 2,010,459,907.67/65,000.93
  6. Step 6: Final answer
    x = 30,929.71

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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.