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Finding the Fourth Proportional to 70,054.96, 96,681.58 and 39,849.74

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Solution

The fourth proportional to 70,054.96, 96,681.58 and 39,849.74 is: 54,995.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,054.96 : 96,681.58 = 39,849.74 : x
  2. Step 2: Convert to fraction form
    70,054.96/96,681.58 = 39,849.74/x
  3. Step 3: Cross multiply
    70,054.96x = 96,681.58 × 39,849.74
  4. Step 4: Simplify right side
    70,054.96x = 3,852,735,825.79
  5. Step 5: Solve for x
    x = 3,852,735,825.79/70,054.96
  6. Step 6: Final answer
    x = 54,995.90

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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.