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Finding the Fourth Proportional to 70,447.59, 97,220.03 and 38,616.57

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Solution

The fourth proportional to 70,447.59, 97,220.03 and 38,616.57 is: 53,292.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,447.59 : 97,220.03 = 38,616.57 : x
  2. Step 2: Convert to fraction form
    70,447.59/97,220.03 = 38,616.57/x
  3. Step 3: Cross multiply
    70,447.59x = 97,220.03 × 38,616.57
  4. Step 4: Simplify right side
    70,447.59x = 3,754,303,900.81
  5. Step 5: Solve for x
    x = 3,754,303,900.81/70,447.59
  6. Step 6: Final answer
    x = 53,292.16

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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.