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Finding the Fourth Proportional to 10,368.10, 15,535.05 and 5,977.90

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Solution

The fourth proportional to 10,368.10, 15,535.05 and 5,977.90 is: 8,956.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,368.10 : 15,535.05 = 5,977.90 : x
  2. Step 2: Convert to fraction form
    10,368.10/15,535.05 = 5,977.90/x
  3. Step 3: Cross multiply
    10,368.10x = 15,535.05 × 5,977.90
  4. Step 4: Simplify right side
    10,368.10x = 92,866,975.40
  5. Step 5: Solve for x
    x = 92,866,975.40/10,368.10
  6. Step 6: Final answer
    x = 8,956.99

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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.