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Finding the Fourth Proportional to 9,620.60, 13,281.95 and 7,333.99

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Solution

The fourth proportional to 9,620.60, 13,281.95 and 7,333.99 is: 10,125.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,620.60 : 13,281.95 = 7,333.99 : x
  2. Step 2: Convert to fraction form
    9,620.60/13,281.95 = 7,333.99/x
  3. Step 3: Cross multiply
    9,620.60x = 13,281.95 × 7,333.99
  4. Step 4: Simplify right side
    9,620.60x = 97,409,618.61
  5. Step 5: Solve for x
    x = 97,409,618.61/9,620.60
  6. Step 6: Final answer
    x = 10,125.11

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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.