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Finding the Fourth Proportional to 64,703.88, 97,117.74 and 31,446.90

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Solution

The fourth proportional to 64,703.88, 97,117.74 and 31,446.90 is: 47,200.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,703.88 : 97,117.74 = 31,446.90 : x
  2. Step 2: Convert to fraction form
    64,703.88/97,117.74 = 31,446.90/x
  3. Step 3: Cross multiply
    64,703.88x = 97,117.74 × 31,446.90
  4. Step 4: Simplify right side
    64,703.88x = 3,054,051,858.01
  5. Step 5: Solve for x
    x = 3,054,051,858.01/64,703.88
  6. Step 6: Final answer
    x = 47,200.44

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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.