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Finding the Fourth Proportional to 93,472.26, 128,991.33 and 51,030.69

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Solution

The fourth proportional to 93,472.26, 128,991.33 and 51,030.69 is: 70,422.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,472.26 : 128,991.33 = 51,030.69 : x
  2. Step 2: Convert to fraction form
    93,472.26/128,991.33 = 51,030.69/x
  3. Step 3: Cross multiply
    93,472.26x = 128,991.33 × 51,030.69
  4. Step 4: Simplify right side
    93,472.26x = 6,582,516,573.92
  5. Step 5: Solve for x
    x = 6,582,516,573.92/93,472.26
  6. Step 6: Final answer
    x = 70,422.14

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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.