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Finding the Fourth Proportional to 9,712.40, 14,579.40 and 6,018.80

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Solution

The fourth proportional to 9,712.40, 14,579.40 and 6,018.80 is: 9,034.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,712.40 : 14,579.40 = 6,018.80 : x
  2. Step 2: Convert to fraction form
    9,712.40/14,579.40 = 6,018.80/x
  3. Step 3: Cross multiply
    9,712.40x = 14,579.40 × 6,018.80
  4. Step 4: Simplify right side
    9,712.40x = 87,750,492.72
  5. Step 5: Solve for x
    x = 87,750,492.72/9,712.40
  6. Step 6: Final answer
    x = 9,034.89

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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.