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Finding the Fourth Proportional to 8,935.40, 13,342.94 and 7,295.15

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Solution

The fourth proportional to 8,935.40, 13,342.94 and 7,295.15 is: 10,893.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,935.40 : 13,342.94 = 7,295.15 : x
  2. Step 2: Convert to fraction form
    8,935.40/13,342.94 = 7,295.15/x
  3. Step 3: Cross multiply
    8,935.40x = 13,342.94 × 7,295.15
  4. Step 4: Simplify right side
    8,935.40x = 97,338,645.55
  5. Step 5: Solve for x
    x = 97,338,645.55/8,935.40
  6. Step 6: Final answer
    x = 10,893.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.