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Finding the Fourth Proportional to 15,275.60, 22,917.04 and 5,415.74

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Solution

The fourth proportional to 15,275.60, 22,917.04 and 5,415.74 is: 8,124.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,275.60 : 22,917.04 = 5,415.74 : x
  2. Step 2: Convert to fraction form
    15,275.60/22,917.04 = 5,415.74/x
  3. Step 3: Cross multiply
    15,275.60x = 22,917.04 × 5,415.74
  4. Step 4: Simplify right side
    15,275.60x = 124,112,730.21
  5. Step 5: Solve for x
    x = 124,112,730.21/15,275.60
  6. Step 6: Final answer
    x = 8,124.90

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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.