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Finding the Fourth Proportional to 7,411.55, 11,064.49 and 7,151.99

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Solution

The fourth proportional to 7,411.55, 11,064.49 and 7,151.99 is: 10,677.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,411.55 : 11,064.49 = 7,151.99 : x
  2. Step 2: Convert to fraction form
    7,411.55/11,064.49 = 7,151.99/x
  3. Step 3: Cross multiply
    7,411.55x = 11,064.49 × 7,151.99
  4. Step 4: Simplify right side
    7,411.55x = 79,133,048.63
  5. Step 5: Solve for x
    x = 79,133,048.63/7,411.55
  6. Step 6: Final answer
    x = 10,677.00

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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.