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Finding the Fourth Proportional to 93,887.68, 129,568 and 51,448.88

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Solution

The fourth proportional to 93,887.68, 129,568 and 51,448.88 is: 71,001.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,887.68 : 129,568 = 51,448.88 : x
  2. Step 2: Convert to fraction form
    93,887.68/129,568 = 51,448.88/x
  3. Step 3: Cross multiply
    93,887.68x = 129,568 × 51,448.88
  4. Step 4: Simplify right side
    93,887.68x = 6,666,128,483.84
  5. Step 5: Solve for x
    x = 6,666,128,483.84/93,887.68
  6. Step 6: Final answer
    x = 71,001.10

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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.