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Finding the Fourth Proportional to 15,073.08, 20,799.72 and 8,358.06

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Solution

The fourth proportional to 15,073.08, 20,799.72 and 8,358.06 is: 11,533.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,073.08 : 20,799.72 = 8,358.06 : x
  2. Step 2: Convert to fraction form
    15,073.08/20,799.72 = 8,358.06/x
  3. Step 3: Cross multiply
    15,073.08x = 20,799.72 × 8,358.06
  4. Step 4: Simplify right side
    15,073.08x = 173,845,307.74
  5. Step 5: Solve for x
    x = 173,845,307.74/15,073.08
  6. Step 6: Final answer
    x = 11,533.50

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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.