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Finding the Fourth Proportional to 9,869.90, 14,800.91 and 4,672.13

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Solution

The fourth proportional to 9,869.90, 14,800.91 and 4,672.13 is: 7,006.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,869.90 : 14,800.91 = 4,672.13 : x
  2. Step 2: Convert to fraction form
    9,869.90/14,800.91 = 4,672.13/x
  3. Step 3: Cross multiply
    9,869.90x = 14,800.91 × 4,672.13
  4. Step 4: Simplify right side
    9,869.90x = 69,151,678.27
  5. Step 5: Solve for x
    x = 69,151,678.27/9,869.90
  6. Step 6: Final answer
    x = 7,006.32

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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.