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Finding the Fourth Proportional to 64,949.40, 97,424.10 and 45,250.20

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Solution

The fourth proportional to 64,949.40, 97,424.10 and 45,250.20 is: 67,875.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,949.40 : 97,424.10 = 45,250.20 : x
  2. Step 2: Convert to fraction form
    64,949.40/97,424.10 = 45,250.20/x
  3. Step 3: Cross multiply
    64,949.40x = 97,424.10 × 45,250.20
  4. Step 4: Simplify right side
    64,949.40x = 4,408,460,009.82
  5. Step 5: Solve for x
    x = 4,408,460,009.82/64,949.40
  6. Step 6: Final answer
    x = 67,875.30

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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.