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Finding the Fourth Proportional to 42,859.99, 64,294.21 and 14,776.34

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Solution

The fourth proportional to 42,859.99, 64,294.21 and 14,776.34 is: 22,165.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,859.99 : 64,294.21 = 14,776.34 : x
  2. Step 2: Convert to fraction form
    42,859.99/64,294.21 = 14,776.34/x
  3. Step 3: Cross multiply
    42,859.99x = 64,294.21 × 14,776.34
  4. Step 4: Simplify right side
    42,859.99x = 950,033,106.99
  5. Step 5: Solve for x
    x = 950,033,106.99/42,859.99
  6. Step 6: Final answer
    x = 22,165.97

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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.