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Finding the Fourth Proportional to 70,034.16, 96,655.36 and 39,824.08

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Solution

The fourth proportional to 70,034.16, 96,655.36 and 39,824.08 is: 54,961.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,034.16 : 96,655.36 = 39,824.08 : x
  2. Step 2: Convert to fraction form
    70,034.16/96,655.36 = 39,824.08/x
  3. Step 3: Cross multiply
    70,034.16x = 96,655.36 × 39,824.08
  4. Step 4: Simplify right side
    70,034.16x = 3,849,210,789.07
  5. Step 5: Solve for x
    x = 3,849,210,789.07/70,034.16
  6. Step 6: Final answer
    x = 54,961.90

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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.