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Finding the Fourth Proportional to 93,984.28, 129,686.32 and 53,700.65

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Solution

The fourth proportional to 93,984.28, 129,686.32 and 53,700.65 is: 74,100.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,984.28 : 129,686.32 = 53,700.65 : x
  2. Step 2: Convert to fraction form
    93,984.28/129,686.32 = 53,700.65/x
  3. Step 3: Cross multiply
    93,984.28x = 129,686.32 × 53,700.65
  4. Step 4: Simplify right side
    93,984.28x = 6,964,239,283.06
  5. Step 5: Solve for x
    x = 6,964,239,283.06/93,984.28
  6. Step 6: Final answer
    x = 74,100.05

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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.