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Finding the Fourth Proportional to 70,292.68, 97,003.78 and 38,461.71

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Solution

The fourth proportional to 70,292.68, 97,003.78 and 38,461.71 is: 53,077.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,292.68 : 97,003.78 = 38,461.71 : x
  2. Step 2: Convert to fraction form
    70,292.68/97,003.78 = 38,461.71/x
  3. Step 3: Cross multiply
    70,292.68x = 97,003.78 × 38,461.71
  4. Step 4: Simplify right side
    70,292.68x = 3,730,931,255.26
  5. Step 5: Solve for x
    x = 3,730,931,255.26/70,292.68
  6. Step 6: Final answer
    x = 53,077.10

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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.