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Finding the Fourth Proportional to 50,888.64, 70,210.08 and 30,753.12

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Solution

The fourth proportional to 50,888.64, 70,210.08 and 30,753.12 is: 42,429.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,888.64 : 70,210.08 = 30,753.12 : x
  2. Step 2: Convert to fraction form
    50,888.64/70,210.08 = 30,753.12/x
  3. Step 3: Cross multiply
    50,888.64x = 70,210.08 × 30,753.12
  4. Step 4: Simplify right side
    50,888.64x = 2,159,179,015.45
  5. Step 5: Solve for x
    x = 2,159,179,015.45/50,888.64
  6. Step 6: Final answer
    x = 42,429.49

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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.