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Finding the Fourth Proportional to 93,047.91, 128,405.75 and 50,607.15

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Solution

The fourth proportional to 93,047.91, 128,405.75 and 50,607.15 is: 69,837.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,047.91 : 128,405.75 = 50,607.15 : x
  2. Step 2: Convert to fraction form
    93,047.91/128,405.75 = 50,607.15/x
  3. Step 3: Cross multiply
    93,047.91x = 128,405.75 × 50,607.15
  4. Step 4: Simplify right side
    93,047.91x = 6,498,248,409.08
  5. Step 5: Solve for x
    x = 6,498,248,409.08/93,047.91
  6. Step 6: Final answer
    x = 69,837.66

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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.