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Finding the Fourth Proportional to 70,070.93, 96,700.02 and 39,860.63

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Solution

The fourth proportional to 70,070.93, 96,700.02 and 39,860.63 is: 55,008.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,070.93 : 96,700.02 = 39,860.63 : x
  2. Step 2: Convert to fraction form
    70,070.93/96,700.02 = 39,860.63/x
  3. Step 3: Cross multiply
    70,070.93x = 96,700.02 × 39,860.63
  4. Step 4: Simplify right side
    70,070.93x = 3,854,523,718.21
  5. Step 5: Solve for x
    x = 3,854,523,718.21/70,070.93
  6. Step 6: Final answer
    x = 55,008.88

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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.