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Finding the Fourth Proportional to 70,699.51, 97,566.96 and 38,435.95

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Solution

The fourth proportional to 70,699.51, 97,566.96 and 38,435.95 is: 53,042.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,699.51 : 97,566.96 = 38,435.95 : x
  2. Step 2: Convert to fraction form
    70,699.51/97,566.96 = 38,435.95/x
  3. Step 3: Cross multiply
    70,699.51x = 97,566.96 × 38,435.95
  4. Step 4: Simplify right side
    70,699.51x = 3,750,078,796.21
  5. Step 5: Solve for x
    x = 3,750,078,796.21/70,699.51
  6. Step 6: Final answer
    x = 53,042.50

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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.