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Finding the Fourth Proportional to 10,596.90, 15,858.90 and 7,316.40

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Solution

The fourth proportional to 10,596.90, 15,858.90 and 7,316.40 is: 10,949.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,596.90 : 15,858.90 = 7,316.40 : x
  2. Step 2: Convert to fraction form
    10,596.90/15,858.90 = 7,316.40/x
  3. Step 3: Cross multiply
    10,596.90x = 15,858.90 × 7,316.40
  4. Step 4: Simplify right side
    10,596.90x = 116,030,055.96
  5. Step 5: Solve for x
    x = 116,030,055.96/10,596.90
  6. Step 6: Final answer
    x = 10,949.43

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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.