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Finding the Fourth Proportional to 7,312.79, 10,971.93 and 4,352.94

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Solution

The fourth proportional to 7,312.79, 10,971.93 and 4,352.94 is: 6,531.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,312.79 : 10,971.93 = 4,352.94 : x
  2. Step 2: Convert to fraction form
    7,312.79/10,971.93 = 4,352.94/x
  3. Step 3: Cross multiply
    7,312.79x = 10,971.93 × 4,352.94
  4. Step 4: Simplify right side
    7,312.79x = 47,760,136.11
  5. Step 5: Solve for x
    x = 47,760,136.11/7,312.79
  6. Step 6: Final answer
    x = 6,531.04

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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.