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Finding the Fourth Proportional to 70,272.40, 97,004.76 and 47,642.38

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Solution

The fourth proportional to 70,272.40, 97,004.76 and 47,642.38 is: 65,766.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,272.40 : 97,004.76 = 47,642.38 : x
  2. Step 2: Convert to fraction form
    70,272.40/97,004.76 = 47,642.38/x
  3. Step 3: Cross multiply
    70,272.40x = 97,004.76 × 47,642.38
  4. Step 4: Simplify right side
    70,272.40x = 4,621,537,637.73
  5. Step 5: Solve for x
    x = 4,621,537,637.73/70,272.40
  6. Step 6: Final answer
    x = 65,766.04

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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.