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Finding the Fourth Proportional to 43,616.60, 65,424.90 and 15,925.40

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Solution

The fourth proportional to 43,616.60, 65,424.90 and 15,925.40 is: 23,888.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,616.60 : 65,424.90 = 15,925.40 : x
  2. Step 2: Convert to fraction form
    43,616.60/65,424.90 = 15,925.40/x
  3. Step 3: Cross multiply
    43,616.60x = 65,424.90 × 15,925.40
  4. Step 4: Simplify right side
    43,616.60x = 1,041,917,702.46
  5. Step 5: Solve for x
    x = 1,041,917,702.46/43,616.60
  6. Step 6: Final answer
    x = 23,888.10

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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.