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Finding the Fourth Proportional to 8,973.92, 13,541.84 and 8,648.48

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Solution

The fourth proportional to 8,973.92, 13,541.84 and 8,648.48 is: 13,050.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,973.92 : 13,541.84 = 8,648.48 : x
  2. Step 2: Convert to fraction form
    8,973.92/13,541.84 = 8,648.48/x
  3. Step 3: Cross multiply
    8,973.92x = 13,541.84 × 8,648.48
  4. Step 4: Simplify right side
    8,973.92x = 117,116,332.40
  5. Step 5: Solve for x
    x = 117,116,332.40/8,973.92
  6. Step 6: Final answer
    x = 13,050.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.