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Finding the Fourth Proportional to 9,623.40, 14,459.40 and 8,554.20

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Solution

The fourth proportional to 9,623.40, 14,459.40 and 8,554.20 is: 12,852.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,623.40 : 14,459.40 = 8,554.20 : x
  2. Step 2: Convert to fraction form
    9,623.40/14,459.40 = 8,554.20/x
  3. Step 3: Cross multiply
    9,623.40x = 14,459.40 × 8,554.20
  4. Step 4: Simplify right side
    9,623.40x = 123,688,599.48
  5. Step 5: Solve for x
    x = 123,688,599.48/9,623.40
  6. Step 6: Final answer
    x = 12,852.90

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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.