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Finding the Fourth Proportional to 9,885.70, 14,828.55 and 9,459.10

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Solution

The fourth proportional to 9,885.70, 14,828.55 and 9,459.10 is: 14,188.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,885.70 : 14,828.55 = 9,459.10 : x
  2. Step 2: Convert to fraction form
    9,885.70/14,828.55 = 9,459.10/x
  3. Step 3: Cross multiply
    9,885.70x = 14,828.55 × 9,459.10
  4. Step 4: Simplify right side
    9,885.70x = 140,264,737.31
  5. Step 5: Solve for x
    x = 140,264,737.31/9,885.70
  6. Step 6: Final answer
    x = 14,188.65

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Similar ratio
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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.