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Finding the Fourth Proportional to 42,714.94, 64,048.40 and 17,738.18

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Solution

The fourth proportional to 42,714.94, 64,048.40 and 17,738.18 is: 26,597.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,714.94 : 64,048.40 = 17,738.18 : x
  2. Step 2: Convert to fraction form
    42,714.94/64,048.40 = 17,738.18/x
  3. Step 3: Cross multiply
    42,714.94x = 64,048.40 × 17,738.18
  4. Step 4: Simplify right side
    42,714.94x = 1,136,102,047.91
  5. Step 5: Solve for x
    x = 1,136,102,047.91/42,714.94
  6. Step 6: Final answer
    x = 26,597.30

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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.