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Finding the Fourth Proportional to 32,957.76, 45,487.68 and 21,024.80

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Solution

The fourth proportional to 32,957.76, 45,487.68 and 21,024.80 is: 29,018.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,957.76 : 45,487.68 = 21,024.80 : x
  2. Step 2: Convert to fraction form
    32,957.76/45,487.68 = 21,024.80/x
  3. Step 3: Cross multiply
    32,957.76x = 45,487.68 × 21,024.80
  4. Step 4: Simplify right side
    32,957.76x = 956,369,374.46
  5. Step 5: Solve for x
    x = 956,369,374.46/32,957.76
  6. Step 6: Final answer
    x = 29,018.03

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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.