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Finding the Fourth Proportional to 70,999.88, 97,962.36 and 43,397.58

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Solution

The fourth proportional to 70,999.88, 97,962.36 and 43,397.58 is: 59,877.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,999.88 : 97,962.36 = 43,397.58 : x
  2. Step 2: Convert to fraction form
    70,999.88/97,962.36 = 43,397.58/x
  3. Step 3: Cross multiply
    70,999.88x = 97,962.36 × 43,397.58
  4. Step 4: Simplify right side
    70,999.88x = 4,251,329,355.09
  5. Step 5: Solve for x
    x = 4,251,329,355.09/70,999.88
  6. Step 6: Final answer
    x = 59,877.98

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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.