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Finding the Fourth Proportional to 70,417.21, 105,649.35 and 23,034.46

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Solution

The fourth proportional to 70,417.21, 105,649.35 and 23,034.46 is: 34,559.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,417.21 : 105,649.35 = 23,034.46 : x
  2. Step 2: Convert to fraction form
    70,417.21/105,649.35 = 23,034.46/x
  3. Step 3: Cross multiply
    70,417.21x = 105,649.35 × 23,034.46
  4. Step 4: Simplify right side
    70,417.21x = 2,433,575,726.60
  5. Step 5: Solve for x
    x = 2,433,575,726.60/70,417.21
  6. Step 6: Final answer
    x = 34,559.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.