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Finding the Fourth Proportional to 93,621, 129,182.52 and 53,329.64

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Solution

The fourth proportional to 93,621, 129,182.52 and 53,329.64 is: 73,586.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,621 : 129,182.52 = 53,329.64 : x
  2. Step 2: Convert to fraction form
    93,621/129,182.52 = 53,329.64/x
  3. Step 3: Cross multiply
    93,621x = 129,182.52 × 53,329.64
  4. Step 4: Simplify right side
    93,621x = 6,889,257,285.89
  5. Step 5: Solve for x
    x = 6,889,257,285.89/93,621
  6. Step 6: Final answer
    x = 73,586.67

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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.