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Finding the Fourth Proportional to 70,307.88, 97,065.86 and 60,861.48

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Solution

The fourth proportional to 70,307.88, 97,065.86 and 60,861.48 is: 84,024.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,307.88 : 97,065.86 = 60,861.48 : x
  2. Step 2: Convert to fraction form
    70,307.88/97,065.86 = 60,861.48/x
  3. Step 3: Cross multiply
    70,307.88x = 97,065.86 × 60,861.48
  4. Step 4: Simplify right side
    70,307.88x = 5,907,571,897.07
  5. Step 5: Solve for x
    x = 5,907,571,897.07/70,307.88
  6. Step 6: Final answer
    x = 84,024.32

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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.