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Finding the Fourth Proportional to 70,595.04, 97,420.86 and 38,764.20

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Solution

The fourth proportional to 70,595.04, 97,420.86 and 38,764.20 is: 53,494.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,595.04 : 97,420.86 = 38,764.20 : x
  2. Step 2: Convert to fraction form
    70,595.04/97,420.86 = 38,764.20/x
  3. Step 3: Cross multiply
    70,595.04x = 97,420.86 × 38,764.20
  4. Step 4: Simplify right side
    70,595.04x = 3,776,441,701.21
  5. Step 5: Solve for x
    x = 3,776,441,701.21/70,595.04
  6. Step 6: Final answer
    x = 53,494.43

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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.