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Finding the Fourth Proportional to 57,384.77, 86,074.79 and 19,953.32

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Solution

The fourth proportional to 57,384.77, 86,074.79 and 19,953.32 is: 29,929.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,384.77 : 86,074.79 = 19,953.32 : x
  2. Step 2: Convert to fraction form
    57,384.77/86,074.79 = 19,953.32/x
  3. Step 3: Cross multiply
    57,384.77x = 86,074.79 × 19,953.32
  4. Step 4: Simplify right side
    57,384.77x = 1,717,477,298.66
  5. Step 5: Solve for x
    x = 1,717,477,298.66/57,384.77
  6. Step 6: Final answer
    x = 29,929.15

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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.