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Finding the Fourth Proportional to 70,461.70, 97,235.04 and 38,629.51

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Solution

The fourth proportional to 70,461.70, 97,235.04 and 38,629.51 is: 53,307.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,461.70 : 97,235.04 = 38,629.51 : x
  2. Step 2: Convert to fraction form
    70,461.70/97,235.04 = 38,629.51/x
  3. Step 3: Cross multiply
    70,461.70x = 97,235.04 × 38,629.51
  4. Step 4: Simplify right side
    70,461.70x = 3,756,141,950.03
  5. Step 5: Solve for x
    x = 3,756,141,950.03/70,461.70
  6. Step 6: Final answer
    x = 53,307.57

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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.