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Finding the Fourth Proportional to 12,953.32, 17,875.48 and 7,364.32

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Solution

The fourth proportional to 12,953.32, 17,875.48 and 7,364.32 is: 10,162.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,953.32 : 17,875.48 = 7,364.32 : x
  2. Step 2: Convert to fraction form
    12,953.32/17,875.48 = 7,364.32/x
  3. Step 3: Cross multiply
    12,953.32x = 17,875.48 × 7,364.32
  4. Step 4: Simplify right side
    12,953.32x = 131,640,754.87
  5. Step 5: Solve for x
    x = 131,640,754.87/12,953.32
  6. Step 6: Final answer
    x = 10,162.70

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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.