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Finding the Fourth Proportional to 32,405.73, 48,612.65 and 12,681.74

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Solution

The fourth proportional to 32,405.73, 48,612.65 and 12,681.74 is: 19,024.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,405.73 : 48,612.65 = 12,681.74 : x
  2. Step 2: Convert to fraction form
    32,405.73/48,612.65 = 12,681.74/x
  3. Step 3: Cross multiply
    32,405.73x = 48,612.65 × 12,681.74
  4. Step 4: Simplify right side
    32,405.73x = 616,492,988.01
  5. Step 5: Solve for x
    x = 616,492,988.01/32,405.73
  6. Step 6: Final answer
    x = 19,024.20

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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.