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Finding the Fourth Proportional to 11,098.50, 15,315.93 and 6,130.50

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Solution

The fourth proportional to 11,098.50, 15,315.93 and 6,130.50 is: 8,460.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,098.50 : 15,315.93 = 6,130.50 : x
  2. Step 2: Convert to fraction form
    11,098.50/15,315.93 = 6,130.50/x
  3. Step 3: Cross multiply
    11,098.50x = 15,315.93 × 6,130.50
  4. Step 4: Simplify right side
    11,098.50x = 93,894,308.87
  5. Step 5: Solve for x
    x = 93,894,308.87/11,098.50
  6. Step 6: Final answer
    x = 8,460.09

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1.5x scale

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.