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Finding the Fourth Proportional to 8,931.25, 12,325.27 and 4,952.53

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Solution

The fourth proportional to 8,931.25, 12,325.27 and 4,952.53 is: 6,834.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.25 : 12,325.27 = 4,952.53 : x
  2. Step 2: Convert to fraction form
    8,931.25/12,325.27 = 4,952.53/x
  3. Step 3: Cross multiply
    8,931.25x = 12,325.27 × 4,952.53
  4. Step 4: Simplify right side
    8,931.25x = 61,041,207.81
  5. Step 5: Solve for x
    x = 61,041,207.81/8,931.25
  6. Step 6: Final answer
    x = 6,834.57

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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.