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Finding the Fourth Proportional to 64,712.01, 97,068.08 and 20,342.64

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Solution

The fourth proportional to 64,712.01, 97,068.08 and 20,342.64 is: 30,513.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,712.01 : 97,068.08 = 20,342.64 : x
  2. Step 2: Convert to fraction form
    64,712.01/97,068.08 = 20,342.64/x
  3. Step 3: Cross multiply
    64,712.01x = 97,068.08 × 20,342.64
  4. Step 4: Simplify right side
    64,712.01x = 1,974,621,057.79
  5. Step 5: Solve for x
    x = 1,974,621,057.79/64,712.01
  6. Step 6: Final answer
    x = 30,513.98

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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.