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Finding the Fourth Proportional to 7,045.40, 9,700.53 and 5,980.96

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Solution

The fourth proportional to 7,045.40, 9,700.53 and 5,980.96 is: 8,234.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,045.40 : 9,700.53 = 5,980.96 : x
  2. Step 2: Convert to fraction form
    7,045.40/9,700.53 = 5,980.96/x
  3. Step 3: Cross multiply
    7,045.40x = 9,700.53 × 5,980.96
  4. Step 4: Simplify right side
    7,045.40x = 58,018,452.00
  5. Step 5: Solve for x
    x = 58,018,452.00/7,045.40
  6. Step 6: Final answer
    x = 8,234.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.