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Finding the Fourth Proportional to 48,312.32, 66,640.32 and 34,903.28

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Solution

The fourth proportional to 48,312.32, 66,640.32 and 34,903.28 is: 48,144.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,312.32 : 66,640.32 = 34,903.28 : x
  2. Step 2: Convert to fraction form
    48,312.32/66,640.32 = 34,903.28/x
  3. Step 3: Cross multiply
    48,312.32x = 66,640.32 × 34,903.28
  4. Step 4: Simplify right side
    48,312.32x = 2,325,965,748.25
  5. Step 5: Solve for x
    x = 2,325,965,748.25/48,312.32
  6. Step 6: Final answer
    x = 48,144.36

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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.