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Finding the Fourth Proportional to 64,973.04, 89,634.84 and 38,123.76

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Solution

The fourth proportional to 64,973.04, 89,634.84 and 38,123.76 is: 52,594.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,973.04 : 89,634.84 = 38,123.76 : x
  2. Step 2: Convert to fraction form
    64,973.04/89,634.84 = 38,123.76/x
  3. Step 3: Cross multiply
    64,973.04x = 89,634.84 × 38,123.76
  4. Step 4: Simplify right side
    64,973.04x = 3,417,217,127.80
  5. Step 5: Solve for x
    x = 3,417,217,127.80/64,973.04
  6. Step 6: Final answer
    x = 52,594.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.