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Finding the Fourth Proportional to 9,355.17, 12,915.42 and 7,460.67

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Solution

The fourth proportional to 9,355.17, 12,915.42 and 7,460.67 is: 10,299.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,355.17 : 12,915.42 = 7,460.67 : x
  2. Step 2: Convert to fraction form
    9,355.17/12,915.42 = 7,460.67/x
  3. Step 3: Cross multiply
    9,355.17x = 12,915.42 × 7,460.67
  4. Step 4: Simplify right side
    9,355.17x = 96,357,686.53
  5. Step 5: Solve for x
    x = 96,357,686.53/9,355.17
  6. Step 6: Final answer
    x = 10,299.94

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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.