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Finding the Fourth Proportional to 32,702.79, 45,130.70 and 18,363.77

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Solution

The fourth proportional to 32,702.79, 45,130.70 and 18,363.77 is: 25,342.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,702.79 : 45,130.70 = 18,363.77 : x
  2. Step 2: Convert to fraction form
    32,702.79/45,130.70 = 18,363.77/x
  3. Step 3: Cross multiply
    32,702.79x = 45,130.70 × 18,363.77
  4. Step 4: Simplify right side
    32,702.79x = 828,769,477.27
  5. Step 5: Solve for x
    x = 828,769,477.27/32,702.79
  6. Step 6: Final answer
    x = 25,342.47

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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.