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Finding the Fourth Proportional to 93,792.47, 129,433.61 and 51,351

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Solution

The fourth proportional to 93,792.47, 129,433.61 and 51,351 is: 70,864.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,792.47 : 129,433.61 = 51,351 : x
  2. Step 2: Convert to fraction form
    93,792.47/129,433.61 = 51,351/x
  3. Step 3: Cross multiply
    93,792.47x = 129,433.61 × 51,351
  4. Step 4: Simplify right side
    93,792.47x = 6,646,545,050.36
  5. Step 5: Solve for x
    x = 6,646,545,050.36/93,792.47
  6. Step 6: Final answer
    x = 70,864.38

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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.